When an orphaned “Sixer” girl comes to Terra Nova seeking asylum, Jim and Shannon are at odds if they can trust her; Mira plots to reclaim a valued possession; Taylor begins to suspect there is a traitor in his midst and Reynolds admits his feelings for Maddy.
Alicia takes a pro bono case in which a witness quickly becomes the prime suspect. Will and Diane plot the firm’s direction and their futures.
Olivia uncovers a dangerous force that may be connected to past experiments with Cortexiphan. The investigation forces Walter to leave the lab for the first time in years and travel to Massive Dynamic to examine old case files. Walter struggles with his emotional state as he confronts the demons of his past.
While Lisbon looks into the death of a photographer at a political rally, Jane has his sights set on proving a man carrying a gun at the same rally is a psychopath with murder on his mind.
New roommates Troy and Abed host an apartment-warming party that takes a strange turn.
Gloria tries to help Jay and Manny with their problems but both are unreceptive. Claire considers running against Councilman Duane Bailey. Cam and Mitch are the victims of a hit-and-run accident.
Frankie learns that Axl’s PSAT’s are fast approaching and he hasn’t been preparing for them. Sue sets her sights high and decides to try out for cheerleading, while Mike decides that Brick needs to toughen up when he gets bullied at school.
While investigating the mysterious shooting death of a young woman, Castle and Beckett face a cop’s worst nightmare when they discover that the gun used in the killing is Det. Ryan’s old service weapon – the one that was stolen by the serial killer, 3XK. Now with the clock ticking, the team must work to solve the murder, track down 3XK and retrieve Ryan’s gun before the killer strikes again.
Marshall decides to step in after seeing his boss’s approach to settling with a million dollar company. Ted’s class trip isn’t what he envisioned.
