John Ruby

When a bomb kills five people at a protest rally, Beckett and Castle try to solve the case by reconstructing the 47 seconds prior to the explosion.

The investigation of a lab tech's murder reveals strange similarities to a cold case from the 1950s; the team catches a glimpse of what goes on in the lab.

Jules starts to question her relationship with Grayson; Travis' girlfriend throws Bobby off his golf game.

When a woman is found dead in Mexico and a murdered couple is discovered in a driveway, evidence from one investigation could help the other.

Raylan turns to an old friend for help after Ava makes a drastic decision.

A massage mishap breaks the ice with a sexy, eligible client, leaving Riley (Jennifer Love Hewitt) to wonder if she's ready to start dating. Meanwhile, Linette's (Cybill Shepherd) relationship with Garrett (Brian Kerwin) seems headed for the long haul until damaging secrets from Garrett's past force Riley to intervene.