10.0/102 votes#1 - Nevermore
Season 1 Episode 6 - Aired 8/30/2003
Raven's creepy tantrum of crackling black energy leaves Dr. Light begging for mercy, and the Titans see a new side of Raven, her temper. But, when Cyborg and Beast Boy find a Mysterious Mirror in Raven's room, they're suddenly transported to a strange nightmare world that's somehow connected to Raven.
Director: Michael Chang
Writer: Greg Klein
10.0/101 votes#2 - The Prophecy
Season 4 Episode 7 - Aired 6/4/2005
Ever since Slade's return, the Titans have been searching high and low for answers, including looking for theories as to the 'S' mark on his forehead. However, Raven knows why he's back, and the Titans are about to discover the truth themselves after Slade launches another attack.
Director: Heather A. Maxwell
Writer: Greg Klein
9.5/102 votes#3 - Masks
Season 1 Episode 9 - Aired 9/20/2003
A thief called Red X, who knows the Titans’ every weakness, shows up. Every time the Titans try to catch him, they are badly defeated. Meanwhile, Robin - who has been obsessed with capturing Slade - isolates himself more and more from the team.
Director: Michael Chang
Writer: Greg Klein
9.0/101 votes#4 - The Cat, the Bat and the Very Ugly
Season 2 Episode 1 - Aired 5/14/2005
During a museum robbery, a partnership is formed between Catwoman and Penguin. But when Penguin double-crosses Catwoman before she can double-cross him, she and Batman have to stop Penguin before he unleashes his true plan: harnessing the power of Ra!
Director: Brandon Vietti
Writer: Greg Klein
8.0/101 votes#5 - The Summoning
Season 1 Episode 1 - Aired 9/29/2001
The mummy Imhotep needs the Manacle of Osiris to fulfill his quest to rule all mankind, but it's stuck on Alex's wrist, and only the Lost Scrolls of Thebes can remove it without destroying its power.
Director: N/A
Writer: Greg Klein
8.0/101 votes#6 - Wavelength
Season 3 Episode 8 - Aired 10/23/2004
Brother Blood is back, and this time, it's personal. Cyborg learns that Blood stole his blueprints--and the villain is using Cyborg's technology to create a doomsday device. Can Cyborg take charge of the team and lead a mission to stop his archenemy?
Director: Heather A. Maxwell
Writer: Greg Klein
7.0/101 votes#7 - Black Magic
Season 4 Episode 4 - Aired 10/4/2003
While attempting to stop the Enforcers from getting the fourth oni mask, it accidentally lands on Captain Black's face. He uses the powers of the mask to help him easily take down the Enforcers. Jackie and the rest of the group become worried when Captain Black becomes very intrigued and excited by his newfound abilities. Captain Black's true good side is able to ward off the influence of the mask for a while, but the dark power of the oni begins to slowly corrupt and take hold of him. When the darker oni Captain Black finally emerges, he attempts to take advantage of his full access to Section 13. Jackie, Jade, Uncle, and Tohru race to work on a way to keep the other three stored masks away from Black as they search for the ingredient needed to perform a removal spell.
Director: Brandon Vietti
Writer: Greg Klein
7.0/101 votes#8 - J2: Rise of the Dragons
Season 4 Episode 11 - Aired 1/31/2004
The J-Team unites to battle the anti-J-Team, and Jade casts a spell that backfires and turns the J-Team into toddlers.
Director: Seung Eun Kim
Writer: Greg Klein
7.0/101 votes#9 - Relics of Demons Past
Season 5 Episode 1 - Aired 9/11/2004
Drago breaks out of Section 13 on a mission to absorb the demon chi that is held in the original artifacts used to defeat the demons so many years ago. He finds the Enforcers at a petting zoo and transforms them into dragon-human hybrids. Drago locates the fan that holds the chi of the Wind Demon. Meanwhile, Jade gets into the nasty habit of burping. Jackie and Captain Black hunt Drago down to a Chinese-themed car wash, where the fan is located. Unbeknownst to everyone, Jade absorbs the demon chi. At school, her burps create powerful wind storms, and she begins to transform into a frog. Drago attacks Jade at school in order to absorb the chi, but Uncle and Tohru arrive to capture it instead. Drago fires the Enforcers and turns them back into their old human selves after they prove that they are weak and useless.
Director: David Hartman
Writer: Greg Klein
7.0/101 votes#10 - The Demon Beneath My Wings
Season 5 Episode 5 - Aired 6/4/2005
After capturing the chi of Hsi Wu, the sky demon, Uncle attempts to place it in the chi containment unit. However it is broken, so the chi must remain in the chi-o-matic. Thinking that it is empty, Jade then takes Uncle's chi contraption with her on a school field trip to a haunted doorknob museum. Jade's teacher, Mrs. Hartman confiscates the chi-o-matic and accidentally infuses herself with Hsi Wu's chi. Things get worse in the haunted house when Drago appears and the ghosts get angry at the presence of two demons in their house.
Director: Kirk Van Wormer
Writer: Greg Klein
7.0/101 votes#11 - Stealing Thunder
Season 5 Episode 9 - Aired 6/18/2005
After fully absorbing the chi of Tchang Zu, Drago sets out to magnify the power of the thunder chi by turning his new lair, Seattle’s Space Needle into his own personal electrical rod. Uncle reveals that the longer that Drago has the demon chi, it will become even more difficult for him to remove it.
Director: Kirk Van Wormer
Writer: Greg Klein
6.2/104 votes#12 - Kevin 11
Season 1 Episode 7 - Aired 2/11/2006
Ben meets a mutant who can absorb any form of energy and may be after the Omnitrix.
Director: Scooter Tidwell
Writer: Greg Klein
5.7/103 votes#13 - Gwen 10
Season 2 Episode 4 - Aired 6/1/2006
In this "how 'bout?" episode, Gwen gets the Omnitrix and the power that comes with it.
Director: Scooter Tidwell
Writer: Greg Klein
5.4/105 votes#14 - The Man Who Would Be Bat
Season 1 Episode 5 - Aired 10/30/2004
A dangerous experiment turns a scientist into a hideous creature called the Man-Bat.
Director: Seung Eun Kim
Writer: Greg Klein
5.4/107 votes#15 - Washington B.C.
Season 1 Episode 2 - Aired 1/13/2006
Ben must fight Dr. Animo, a crazed scientist who has a DNA-altering device.
Director: Alex Soto
Writer: Greg Klein
5.3/103 votes#16 - Side Effects
Season 1 Episode 12 - Aired 3/18/2006
Ben's summer cold causes strange physical changes in his alien personas.
Director: Scooter Tidwell
Writer: Greg Klein
4.7/103 votes#17 - Bullies
Season 1 Episode 7 - Aired 11/11/2000
After having a fight with Shendu, Valmont keeps the Dragon Talisman of combustion for himself and not only busts into the U.S. Mint but puts Captain Black into the hospital as well. Valmont steals all the gold in the reserve, and Jackie must get the talisman, but this time, he has to use his brain to defeat Valmont because of Valmont's incredible powers.
Director: Rick Del Carmen
Writer: Greg Klein
4.0/102 votes#18 - Goodbye and Good Riddance
Season 4 Episode 13 - Aired 4/15/2008
The summer finally ends. Ben and Gwen have to go back to their normal lives. Grandpa Max tells Ben to keep the Omnitrix a secret from everyone, even his parents. Ben agrees, but Vilgax arrives and he'll stop at nothing to get the Omnitrix.
Director: N/A
Writer: Greg Klein
3.5/102 votes#19 - The Return
Season 3 Episode 11 - Aired 4/7/2007
While driving on a Florida highway, a bus of escaped felons rams into the RV. Ben transforms into Stinkfly (though not intentionally) and tries to stop them. With a little help from Grandpa's handy driving, and a magic spell from Gwen, the felons are put back in jail. On the news, the Tennyson's hear about purple lightning delaying a space shuttle launch. Remembering the lightning from the encounter with the werewolf and mummy aliens, they head to Cape Canaveral. At the Space Center, Ben comes under attack by the werewolf and mummy aliens, and new Frankenstein alien. However, why is the purple lightning occurring, and what ties does it have to an old "friend"?
Director: Scooter Tidwell
Writer: Greg Klein
3.5/102 votes#20 - Ben 10 vs. Negative 10 (1)
Season 4 Episode 11 - Aired 3/9/2008
Ben, Gwen, Cooper and Grandpa Max face their last battle ever against the villains they have encountered and they will battle to get the world's most powerful energy source.
Director: Scooter Tidwell
Writer: Greg Klein
3.0/102 votes#21 - They Lurk Below
Season 2 Episode 10 - Aired 7/18/2006
Our heroes ride a jet belonging to Grandpa Max's old Friend, Donovan Grand Smith, who owns an underwater resort. At the entrance, they receive a warm welcome from Donovan himself, though they also meet with his grandson, Edwin, who didn't seem to be excited about their guests. Later, when Edwin, Ben, and Gwen enter the Undersea Manta Ray, a giant submarine, they encounter strange aliens that threatened to destroy the whole resort. While the kids find a way to cooperate with each other to find the source that lures them in, Donovan himself learns a few lessons in how to bond better with his grandson.
Director: Sebastian Montes
Writer: Greg Klein
3.0/102 votes#22 - The Visitor
Season 3 Episode 13 - Aired 4/21/2007
While snowmobiling, two guys accidentally release an alien named Xylene from a strange container. At a park, Ben (as Wildmutt) steals Gwen's kite, so she casts a spell to make dogs attracted to him. Grandpa Max seems sad to be in St. Louis since it is where he met his wife. Xylene attacks, and Grandpa Max comes to defend, only to recognize her. Xylene reveals that she came to find the Omnitrix since she lost it when Vilgax attacked her ship. While Grandpa Max and Xylene talk about the past, a robot emerges from the area where Xylene was and attacks Ben and Gwen. The mechadroid attacks twice, taking Grandpa Max with him. Now Ben must work with Xylene (to his dismay) to save Grandpa Max.
Director: N/A
Writer: Greg Klein
2.5/102 votes#23 - Don't Drink the Water
Season 4 Episode 3 - Aired 7/21/2007
After being in contact with water from the Fountain of Youth, Grandpa Max and Ben are reverted to being kids again. Now, Gwen is left to take care of them while stopping Hex from finding the fountain's source.
Director: Scooter Tidwell
Writer: Greg Klein
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Greg Klein Ratings Summary
"Nevermore" is the best rated episode written by Greg Klein. It scored 10/10 based on 2 votes. It was directed by Michael Chang. It aired on 8/30/2003 and is rated 0.0 points higher than their second-best episode, "The Prophecy".