The Best Episodes Written By Craig Silverstein

Percy makes a move to take over the CIA, Alex goes rogue, and Michael gets trapped inside Division making him unable to help Nikita, who may have to pay with her life for helping Alex.

Ryan takes charge of Division with Nikita by his side. Their first mission under the new regime is to bring in “The Dirty Thirty,” the rogue agents who failed to respond to the Division recall after Percy was killed. Unfortunately, their first mission doesn’t go as planned and Michael is arrested, forcing Nikita to change gears and hatch an escape plan for him. Alex reprises her alter ego, the spoiled Russian princess Alexandra Udinov, in a very unique way as part of the plan to spring Michael. Meanwhile, Birkhoff struggles to maintain a working relationship with Sonya, despite his growing attraction to her.

Alex informs Nikita that Division is sending her on her first mission to kill the leader of a crime syndicate. Alex is uneasy about taking someone's life but is reassured by Nikita who insists on helping her with the kill order. Birkhoff informs Percy and Michael when he discovers the shell program that a Division mole has been using to connect to Nikita in the outside world. When the mission doesn't go as planned, Nikita makes a quick decision in an effort to clear Alex's name. Inside Division, Jayden attempts to reveal Alex as the mole but Thom steps in and a shocking accident clears her name.

Nikita and Michael plot to take down Division and Oversight and are prepared to use the contents of the black box to do so. Amanda is now running Division but Oversight has assigned one of their own, a new agent named Sean, to keep an eye on her. Amanda's first mission is to get back the black box from Nikita, and she enlists Alex's help to do so. Alex refuses until Amanda tells her she will help her find the man who killed Alex's father. Meanwhile, Nikita and Michael find help from an unlikely ally.

A human finger bone found in the clutches of a drowning victim leads to a search for buried treasure.

Johnny's decision to join the reelection campaign of Stillson's chief opponent, Harrison Fisher, has unintended consequences.

Johnny sets out to discover the secret of a mysterious man who appears to be stalking him, but who actually has a life-changing message for Johnny.

The captured spies on both sides of the war head to the gallows. Benedict Arnold demands glory revenge.

Maddy starts interning for the colony’s greatest scientist, and her life is put in danger when she discovers a terrible secret. Meanwhile, Josh makes a deal with the devil in order to solidify his plan to bring his girlfriend from the future to Terra Nova.

In the two-hour Season Finale, the 11th Pilgrimage arrives in Terra Nova and the mysterious Phoenix Group in 2149 makes its move to pillage the past with the help of Lucas and Mira. Meanwhile, Jim and Taylor team up in a last stand against the Phoenix Group, a colonist makes the ultimate sacrifice and a decision is made that will change life in Terra Nova forever.

When she was a deeply troubled teenager, Nikita was rescued from death row by a secret U.S. agency known only as Division, who trained her as a spy and assassin. Nikita was eventually betrayed by the only people she thought she could trust. Now, after three years in hiding, Nikita is seeking retribution and making it clear to her former boss, Percy and her former friends Michael and Birkhoff that she will stop at nothing to expose and destroy their covert operation. Division continues to recruit and train other young people, among them Jaden and Thom, erasing all evidence of their former lives and turning them into cold and efficient killers. One of these new recruits, Alex is a beautiful girl with a violent past and a story not so different from Nikita's. The recruits all spend part of their training with Amanda, a master manipulator who can turn any ugly duckling into a swan and any bleeding heart into a killer.

Lucas races to assemble the final pieces of his mystery device, in advance of the 11th Pilgrimage's arrival. Also, Jim and Taylor confront the colony's "Sixer" mole, Skye is reunited with a familiar face and Terra Nova prepares for war.

Abe plots to assassinate Major Hewlett, then receives a proposition from an unlikely ally. Ben fights at the Battle of Monmouth (June 28, 1778). Benedict Arnold continues to covet Peggy Shippen.

When a Jeffersonian coworker dies of heart failure, the entire team goes to the wake where, upon viewing the body, Brennan realizes the death was no accident.

In the third-season premiere, Abe covers up a murder with an unlikely accomplice. Elsewhere, Benedict Arnold abuses his power as he settles into a new home in Philadelphia.

Taylor and Mira must set aside their differences when they encounter a prehistoric enemy; Jim closes in on the mole.

Mary struggles when she realizes that Abe is a spy working for the other side. Ben and Caleb hope to save Patriot families when they carry out a raid on Setauket.

America enters the cloud; Caspian takes over; Chanda forms a new rebellion; Cody continues the fight; David enters the battle; Waxman gets off the fence.

Johnny takes on a major corporation to prevent the mass marketing of a drug he foresees will cause terrible birth defects years down the line.

When Johnny is reunited with two close friends from high school, one of whom is awaiting a heart transplant, he is tormented by a vision of the other becoming the donor.

Percy and Michael take their latest assignment, a Slavic leader wanted for war crimes, into protective custody. Nikita learns of their hideout and attempts to thwart their plan, but a mysterious group of mercenaries in search of nuclear material beats her to the task. Alex is activated earlier than expected for a special assignment that throws her into the crossfire of bullets. A flashback reveals a pivotal moment in Nikita's life.

As Taylor searches for the "Sixer" mole within Terra Nova, Jim stumbles onto an old murder, for which Taylor is the prime suspect.

Maddie, a bullied teen, receives help from a stranger online; Caspian, a teen loner and math genius struggles with his parents’ toxic relationship; Chanda, a computer engineer, secretly meets with a rival tech giant.

A crashing meteor wipes out all technology and wreaks havoc on the colony. Meanwhile, Maddy and Reynolds are stuck out in the wilderness, Elisabeth and Skye work together to save a life and Taylor tries to prevent Mira and the "Sixers" from invading Terra Nova. Also, a mystery man makes his presence known.

Benedict Arnold rounds up spies in New York. Abe plots to destroy essential British supplies, but he will need his father's help.