What’s On Tonight: ‘The Flash’ Battles A Gorilla Army

The Flash (The CW, 8:00 p.m.) – Grodd has brought his gorilla army to Earth-1, so Team Flash has their hands full trying to stop the invasion.

The Americans (FX, 10:00 p.m.) — Paige is drawn even further into the family business, and tensions with Matthew Beeman finally boil over.

Brooklyn Nine-Nine (Fox, 8:00 p.m.) – The precinct’s audit continues, but Jake and Rosa are drawn into an investigation of a burglary on a television show set.

The Middle (ABC, 8:00 p.m.) — Suburban shenanigans continue as Mike threatens to get rid of the family pool unless Sue and Brick actually use it.

The Voice (NBC, 8:00 p.m.) – The showdown to get a spot on the live show continues for the top 24 performers.

Prison Break (Fox, 9:00 p.m.) – As Sara is fleeing from Poseidon’s henchmen, Lincoln tries to find his confiscated passport so he can flee Yemen. Meanwhile, Michael is still planning his latest prison break.

iZombie (CW, 9:00 p.m.) — Major is having trouble adjusting to his new job in the zombie army while Liv reaches a new level of zen after eating the brains of a lifestyle guru.

Trial & Error (NBC, 9:00 p.m.) – A verdict in Larry’s case is finally reached in this two-part season finale.

Imaginary Mary (ABC, 9:00 p.m.) – Young love gets complicated as Andy struggles to find a prom date and Dora has a potential suitor who is particularly persistent.

Marvel’s Agents of S.H.I.E.L.D. (ABC, 9:00 p.m.) – Can Fitz be redeemed S.H.I.E.L.D. is once again crumbling as the team tries to save one of their own.

The Detour (TBS, 10:00 p.m.) – Robin and Nate make a trip from New York to Florida at a breakneck speed in order to pick up the kids.

LATE NIGHT GUESTS

The Tonight Show Starring Jimmy Fallon (NBC, 12:35 a.m.) — Kevin Spacey, Sen. Elizabeth Warren, Alt-J

The Late Show With Stephen Colbert (CBS, 11:35 p.m.) — Alec Baldwin, Charlamagne Tha God, Moshe Kasher, Taj Mahal & Keb’ Mo’