After a violent attack on someone very close to Anna, she delivers a message that the Vs don’t feel safe and will be leaving while she also gives a list of possible Fifth Column members to Chad hoping he’ll investigate to help in finding them. Meanwhile, Erica and the team try to track down a scientist who may have created a weapon that the Visitors are afraid of.
A robbery-homicide prompts Beckett to invite Demming to assist on a case, giving Castle a ringside seat to their budding romance. When it becomes clear that the two men have very different ideas about how to proceed, the investigation becomes an unspoken competition for Beckett’s attention, one in which each man races to solve the case, as Beckett referees between her two admirers.
When Ted, Marshall, Lily and Barney crash a highfalutin party at a swanky New York apartment, Ted gets the chance to mingle with the snooty guests and show off his intellectual side.
While delegates review the peace agreement, Jack searches for evidence of Russian involvement in the day’s tragedies, covered up at the highest levels. Ex-President Logan is desperate to neutralize Jack.
The family waits for news about Hank. While Jesse covers at the lab, Walt attempts to placate Gus. After witnessing a disturbing outburst, Walt worries he and his family are in danger.
When one of the twelve FTL drive modules on the Destiny explodes due to an overload, the crew calls upon a brilliant scientist from Earth to help find a solution.
Patrick Jane and the CBI team investigate the death of a mathematical genius by a gun-wielding clown.
The sexual tension between Jeff and Britta becomes a hot topic in study group. A contest for a chance at early class registration turns the peaceful campus of Greendale Community College into an all-out war zone.
Peter teams up with a local law enforcement official, Sheriff Mathis, on a serial murder investigation with ties to Newton. Meanwhile, Walter copes with the possibility of being sent back to St. Claire’s, and someone from the « other side » pays a visit.
For Jay’s birthday, Gloria gives him the best surprise — a romantic birthday getaway to Hawaii — the only kicker is she invited the whole entire family to come along. Everyone arrives at the airport, and it’s a maddening scene with forgotten I.D.’s, security breaches and flying phobias.