8.2/10581 votes#1 - Perfect Day
Season 4 Episode 1 - Aired 7/7/2007
Enoch and the Forever Knights return, putting Ben in a dream world where he's tricked into having the perfect day. However, his dream quickly turns into a nightmare.
Director: Scooter Tidwell
Writer: Michael Jelenic
7.7/10542 votes#2 - Divided We Stand
Season 4 Episode 2 - Aired 7/14/2007
Ben gains another Omnitrix hero to use, which he calls Ditto. Gwen can't stand being around the multiplying Dittos, and they end up giving her headaches. The Dittos, though, prove to be real helpful against Dr. Animo and his multiplying Stinkflies after he extracted some of Ditto's DNA.
Director: N/A
Writer: Marty Isenberg
7.5/10535 votes#3 - 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: Tom Pugsley, Greg Klein, Marty Isenberg
7.7/10538 votes#4 - Big Fat Alien Wedding
Season 4 Episode 4 - Aired 7/28/2007
Ben, Gwen, and Grandpa Max attend a family wedding. During the ceremony, a strange alien attacks. Will the two ever finish this strange wedding?
Director: N/A
Writer: N/A
6.7/10527 votes#5 - Secret of the Omnitrix (1)
Season 4 Episode 5 - Aired 8/4/2007
During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across space to track down the Omnitrix's creator, Azmuth.
Director: N/A
Writer: N/A
7.2/10517 votes#6 - Secret of the Omnitrix (2)
Season 4 Episode 6 - Aired 8/4/2007
During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across space to track down the Omnitrix's creator, Azmuth.
Director: N/A
Writer: N/A
8.5/10603 votes#7 - Secret of the Omnitrix (3)
Season 4 Episode 7 - Aired 8/4/2007
During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across space to track down the Omnitrix's creator, Azmuth.
Director: N/A
Writer: N/A
8.2/10552 votes#8 - Ben 4 Good Buddy
Season 4 Episode 8 - Aired 9/22/2007
While on a desert highway, the RV gets stolen by a group of modern-day pirates, who use it to go on a robbery.
Director: Scooter Tidwell
Writer: Amy Wolfram
8.2/10556 votes#9 - Ready to Rumble
Season 4 Episode 9 - Aired 9/29/2007
When Ben accidentally breaks Gwen's laptop, he participates in the "Ultimate Wrestling Competition" as Four Arms to get the prize money for a new laptop to replace Gwen's broken one.
Director: Scooter Tidwell
Writer: N/A
8.1/10550 votes#10 - Ken 10
Season 4 Episode 10 - Aired 10/6/2007
In the future, Ben gives his son, Ken, an Omnitrix for his 10th birthday. However, Ben will have to learn to trust him with that power.
Director: N/A
Writer: Greg Weisman
8.9/10498 votes#11 - 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: Tom Pugsley, Greg Klein
8.8/10463 votes#12 - Ben 10 vs. Negative 10 (2)
Season 4 Episode 12 - Aired 3/9/2008
The Forever King sets his plan in motion and recruits the most powerful enemies Ben has ever faced in order to steal the world's most powerful energy source.
Director: N/A
Writer: N/A
9.4/10505 votes#13 - 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: Tom Pugsley, Greg Klein
The Best Episodes of Ben 10 Season 4
Every episode of Ben 10 Season 4 ranked from best to worst. Discover the Best Episodes of Ben 10 Season 4!
When 10-year-old Ben Tennyson discovers a mysterious device, he gains the power to change into ten different alien heroes, each with uniquely awesome powers. With...
Genres:AnimationSci-Fi & FantasyAction & AdventureComedyKids
Network:Cartoon Network
Season 4 Ratings Summary
"Perfect Day" is the best rated episode of "Ben 10" season 4. It scored 8.2/10 based on 581 votes. Directed by Scooter Tidwell and written by Michael Jelenic, it aired on 7/7/2007. This episode is rated 0.5 points higher than the second-best, "Divided We Stand".