
Marshall becomes obsessed with saving the environment after seeing a documentary on garbage. Ted runs into The Captain. Barney admits he has feelings for a woman.

Marshall becomes obsessed with saving the environment after seeing a documentary on garbage. Ted runs into The Captain. Barney admits he has feelings for a woman.

A series of Fringe events leads the team to the home of a woman grieving over the death of her husband, while Peter and Olivia make an effort to repair the emotional rift between them.

When a modern-day prospector is found dead near a mining site and Lisbon is injured during the initial stages of the investigation, Agent Hightower joins Patrick Jane in the field for the first time.

When Pierce lands in the hospital, he believes he’s dying and gives the study group specific gifts that are actually meant to torment them. Britta wonders what to do with a blank check for “charity,” Jeff ponders the idea of meeting his father, and Troy gets to meet LeVar Burton, while Abed films the whole thing for a documentary.

Claire and Cameron are dismayed by the guest list for Lily’s princess-themed birthday party. Then DeDe attends with Claire’s old high school boyfriend in tow. Jay and Gloria turn to their own unique methods of dealing with this gathering of misfits.

Frankie looks for a friend for Brick; Sue sneaks into an R-rated movie against Mike’s wishes; and Axl and his band need a hot female for their music video and try to get stealth footage of their sexy biology teacher.

Will and Diane take on a defamation case from a young Internet billionaire, who is suing the film studio for depicting him in a negative light. Alicia confronts Will about the message he left on her voice mail.

Will and Diane take on a defamation case from a young Internet billionaire, who is suing the film studio for depicting him in a negative light. Alicia confronts Will about the message he left on her voice mail.

Anna, enraged at the increasing audacity of the Fifth Column attacks, enlists Ryan in an attempt to wipe out the Fifth Column in one fell swoop. Meanwhile, Father Travis, following Vatican orders, asks Jack to leave the church, and Lisa meets Diana, her grandmother — who Anna said was dead — for the first time.

Castle and Beckett find themselves on opposite sides of the case when Castle’s old school friend emerges as the prime suspect in his own wife’s murder. As they work to solve the crime, Castle comes to realize that one of two terrible things must be true… Either Detective Beckett is about to arrest an innocent man for murder, or his old friend is a cold-blooded killer.