A Missouri man kills two people at a friend's home, then continues the bloodshed when authorities come looking for him.
A date between Raj and Lucy takes both of them out of their comfort zones. After a trip to Las Vegas goes awry, the girls join in on a Dungeons and Dragons game, which causes Amy and Sheldon to re-evaluate their relationship.
As Ash and his friends prepare for the upcoming Marine Cup Tournament on board their new cruise ship, the group learns that Mrs. Ripple, a jewel collector, will display her collection after the tournament, but upon the tournament's conclusion she discovers that her rare Eye of Liepard has been stolen. She suspects Mr. Shaw - a businessman and jewel collector who has been asking to buy the Eye of Liepard from her - even though it was watched over by her Watchog all night. Cilan takes on his detective role once more to discover the thief of the Eye of Liepard.
Mitch warns Grace about confiding in Jimmy about her suspicions regarding Max. Max is aware of Grace's real identity and tells Alec. Grace and Mitch go to the parking lot where she was supposed to meet Michael Chen.
A frustrated Severide, turns to an unlikely ally to resolve his current dilemma. Casey begins to find satisfaction in his personal life, while Mills and Dawson face personal challenges. Meanwhile, the squad is called to the scene of a harrowing apartment building collapse.
In the aftermath of the riot, Will blackmails Doreen into helping him and Bea is given no choice but to continue to lie.
After Gus accidentally tampers with the crime where his boss was killed, Shawn helps him find the real murderer before Gus is arrested.
The CSIs investigate the mysterious death of a ghost hunter and experiences déjà vu when the victim has eerie similarities to an old case.
Frankie tells the kids what she wants for Mother's day so one of them can clue in Mike; after repeatedly failing the driving test, Sue feels resentful when her friends get their licenses; Axl receives stunning news from Cassidy.
Terry and Bill seem to be the perfect couple; the murder of her daughter has led Nancy to hoard.
Deadliest Catch captains Johnathan and Junior join the MythBusters to test if a crab pot will drag you overboard to the bottom if your foot is caught in a coil, if it's better to work a 30-hr grind with no sleep, and if crab pots truly are indestructible.
The BAU travels to Los Angeles looking for an UnSub who is kidnapping nannies and the children they care for on the same day each year.
With the Undertaking days away, Malcolm dons his black hood to conclude business with seismologist Dr. Brion Markov and his team. Oliver and Moira entertain a number of surprise - and mostly unwelcome - visitors. Hooded confrontations at home and the Meryln Global Group reveal dark secrets. Meanwhile, Roy and Thea are still looking out for a hero. Laurel makes a decision after Tommy's revelation. In a flashback to the island, Oliver, Slade and Shado struggle to prevent Fyers from shooting a Ferris Air jet out of the sky. Paul Blackthorne and David Ramsey also star.
Mitch’s ex-boyfriend, a personable and successful doctor, invites the whole family to a fundraising event at a roller rink; Phil teaches Gloria how to skate; Haley helps Alex talk to boys.
With Polly now happily dating, Natalie wants her dad to also have someone, and guilts Polly into helping Julian find a girl. Meanwhile, Elaine and Max, who have always been unapologetic about who they are, realize they have to make some changes for the sake of Natalie.
Forensic and scientific analysis help determine how 57 Irish immigrants died less than two months after arriving in Pennsylvania to work on the railroad.
The team investigate the suspicious death of care home resident Gerald French after his daughter Catherine raises some concerns about the level of care her father had been receiving. Shy trainee Rosie is seen slapping a resident and she is upset to discover that her mentor doesn’t have her best interests at heart.
Tit for tat. A man struggles with discrimination in the work place, a sore loser finally gets the rematch he's been waiting for, and a man doesn't understand why women can't seem to get the message that he's taken.
Ashley lines the Youngers up to be special guests on the Avengers Krew’s mixtape launch night concert. But unbeknownst to the others Yemi has already started work with A.K. Jay and Davina have a heart to heart. All seems to be sorted until the Mandem on the Wall have a say and things crumble apart.