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 Merlyn 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.

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.

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.

The CSIs investigate the mysterious death of a ghost hunter and experiences déjà vu when the victim has eerie similarities to an old case.

From "Live! With Kelly and Michael", host Michael Strahan; from "How I Met Your Mother", actress Alyson Hannigan; musical guest Natalie Maines.

When two sniper attacks on the NYPD link to Detective Tutuola's past as a narcotics officer, he reconnects with his former partner in hope of finding a motive; Lt. Alexandra Eames helps SVU investigate.

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.

Captains Johnathan and Junior from Deadliest Catch join the team to test if a crab pot will drag you to the bottom if your foot is caught in a coil.

Rayna and Juliette are both nominated for CMA Awards and Edgehill Records hosts a party in their honor. Meanwhile Teddy worries about his relationship with Maddie, Juliette copes with new challenges, Scarlett is concerned about Gunnar, and tension grows between him and Will.

Sam and Dean reunite with Castiel. Digging through the Men of Letters' files, they stumble upon an undiscovered film which could be the key to the third trial. Metatron enlists Cass to mull over problems at home. Meanwhile, Crowley digs into Sam and Dean's past.

Stephen's sister loses her run for Congress, Republicans spite Obama, parents forego diapers, and Richard Besser shares his book, "Tell Me the Truth, Doctor".

From "Parenthood", actress Lauren Graham; music by Ben Dukes.

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.

America's vote will put through the top two artists from each team and the coaches will each save one leaving them to move on to the next phase of the competition.