Series premiere (all 13 episodes): A high school student (newcomer Katherine Langford) leaves behind cassette tapes for the classmates she says all contributed to her decision to commit suicide; Dylan Minnette (Awake), Kate Walsh (Private Practice), Brian D’Arcy James (Smash), Derek Luke (Empire) and Miles Heizer (Parenthood) co-star. (Watch trailer.)

Jack helps Mac protect an old friend/M.I.T. scholar (iZombie‘s Aly Michalka) who fakes her own death to prevent someone from killing her.

Klaus tries to bond with Hope; Elijah attempts to settle a conflict between Freya and Hayley; Vincent divulges dark secrets about his ex-wife to Marcel.

Rosewood and Villa investigate when a corpse turns up frozen solid; Villa introduces her brother to all of the important people in her life.

Season 6 finale: Mandy inadvertently causes a dispute between Chuck and Joe while shadowing Mike at The Outdoor Man. (Get renewal status.)

Season 2 finale: Ken gets cast in a TV show that takes place at a community college, created by Dan Harmon and starring Alison Brie. Also pop-popping by: Community alumni Luke Youngblood (aka Magnitude), Erik Charles Nielsen (Garrett), Daniella Kaplowitz (Vicki) and Richard Erdman (Leonard). (Get renewal status.)

Season 4 finale: The team does everything in its power to stop Dreyfuss from infiltrating the White House (even if he’d technically be doing the nation a favor at this point). (Get renewal status.)

Five-0 helps PI Harry Brown (returning guest star William Forsythe) investigate the abduction of a woman whose husband may be hiding something.

Episode 150: Danny looks into the circumstances of an ex-NYPD officer’s disappearance; one of Frank’s peers (The 100‘s Isaiah Washington) refuses to retire.