9.2/104 votes#1 - Bubble
Season 4 Episode 5 - Aired 12/20/2013
Just as Nikita is finally starting to see an end to the long war with The Shop, Ryan confesses a secret that could unravel it all. Meanwhile, Michael tries to get Nikita to accept their new circumstances as he contemplates what comes next for the two of them. Realizing Sam was planning to steal her diamonds, Alex gives him a suitcase of fake diamonds to deliver to her contact in France. Alex is surprised when he upholds his end of the bargain and doesn’t take off with the jewels. However, things get messy when Sam is jumped by the loan shark he owes money to, and Alex must step in to save him.
Director: Nick Copus
Writer: Oliver Grigsby
8.5/1010 votes#2 - After
Season 4 Episode 5 - Aired 6/22/2018
A clue to breaking the cycle leads Cole and Cassie to the 1960s. Christopher Lloyd returns as Zalmon Shaw, a devoted follower of the Witness.
Director: Sheree Folkson
Writer: Oliver Grigsby
8.4/105 votes#3 - Tipping Point
Season 3 Episode 16 - Aired 4/5/2013
Nikita and Michael learn of a new prosthetic hand that could have Michael back to his old self, but it comes at a steep price. Meanwhile, Alex and Sean are tasked with investigating who, inside Division, is behind a mutiny that ends in bloodshed.
Director: Dwight H. Little
Writer: Oliver Grigsby
8.4/1010 votes#4 - Fatherland
Season 2 Episode 10 - Aired 6/20/2016
Cole has his loyalty tested when Ramse and Railly go rogue, embarking on an unsanctioned mission that sends them to 1961 East Berlin. Once there, they have murder on their minds as they search for an unscrupulous German doctor who knows the location of "The Witness."
Director: Guy Norman Bee
Writer: Oliver Grigsby
7.6/1017 votes#5 - Shades of Gray
Season 3 Episode 19 - Aired 3/9/2009
When Sylar comes face-to-face with his long lost father, the reunion proves to be what he least expected. Elsewhere, after receiving a tip from "Rebel", Claire must decide if she will help her sworn enemy, Eric Doyle, evade capture. Meanwhile, as "The Hunter" plans to uncover the Petrelli family's secrets and take control of Nathan's operation, Matt finds himself in the spotlight and on the verge of leveling Capitol Hill.
Director: Greg Beeman
Writer: Oliver Grigsby
7.6/1021 votes#6 - Yesterday
Season 1 Episode 8 - Aired 3/6/2015
The Core that powers the time machine is fading. To get Cole back from the past, Jones must convince her former colleagues at the military operation "Spearhead" that her mission is worth saving.
Director: Michael Waxman
Writer: Oliver Grigsby
7.1/1016 votes#7 - Pass/Fail
Season 4 Episode 16 - Aired 1/18/2010
Hiros life hangs in the balance as his brain tumor worsens, prompting him to subconsciously deal with some of his past decisions. Meanwhile, Sylar pays Claire an unexpected visit to get answers as to why he isn't quite himself. Elsewhere, Samuels plan to impress his long-lost love, Vanessa, takes a terrifying turn.
Director: Michael Nankin
Writer: Oliver Grigsby
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Oliver Grigsby Ratings Summary
"Bubble" is the best rated episode written by Oliver Grigsby. It scored 9.2/10 based on 4 votes. It was directed by Nick Copus. It aired on 12/20/2013 and is rated 0.7 points higher than their second-best episode, "After".