“Infantino Street” – (8:00-9:00 p.m. ET) (TV-PG, LV) (HDTV)
THE COUNTDOWN BEGINS; WENTWORTH MILLER RETURNS AS CAPTAIN COLD – With only 24 hours left until Savitar murders Iris (Candice Patton), Barry (Grant Gustin) struggles to save the woman he loves and makes the choice to use any means necessary to do so. Realizing he has one option left to save her, The Flash turns to Captain Cold (Wentworth Miller) for help. Michael Allowitz directed the episode with story by Andrew Kreisberg and teleplay by Grainne Godfree (#322). Original airdate 5/16/2017.
“Resist” – (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)
CAT GRANT RETURNS – Supergirl (Melissa Benoist) grapples with whether or not to obey the President’s (guest star Lynda Carter) orders regarding Rhea’s (guest star Teri Hatcher) latest actions. Meanwhile, Cat Grant (Calista Flockhart) returns to National City. Millicent Shelton directed the episode written by Jessica Queller & Derek Simon (#221). Original airdate 5/15/2017.
“Missing” – (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)
BLACK SIREN RETURNS – Black Siren (guest star Katie Cassidy) returns to help Chase (Josh Segarra). Felicity (Emily Bett Rickards) organizes a birthday party for Oliver (Stephen Amell) while Lance (Paul Blackthorne) is furious after Rene (Rick Gonzalez) misses the custody hearing for his daughter. Mairzee Almas directed the episode written by Speed Weed & Oscar Balderrama (#522). Original airdate 5/17/2017.