Supergirl 2x19 Alex
ALEX IS KIDNAPPED – Alex (Chyler Leigh) is kidnapped and the kidnapper threatens to kill her unless Supergirl (Melissa Benoist) releases a notorious criminal from prison. Supergirl and Maggie (Floriana Lima) have always had different approaches to apprehending criminals but this time they must work together to save Alex. Meanwhile, Rhea (guest star Teri Hatcher) has an interesting proposal for Lena (Katie McGrath). Rob Greenlea directed the episode written by Eric Carrasco & Greg Baldwin (#219). Original airdate 5/1/2017.The Flash 3x20 I Know Who You Are
VIBE FACES OFF AGAINST KILLER FROST – Barry (Grant Gustin) and the team meet Tracy Brand (guest star Anne Dudek), a scientist, who may be the key to stopping Savitar. Unfortunately, Killer Frost (Danielle Panabaker) is also after Tracy so Team Flash must battle their old friend, which proves to be particularly difficult for Cisco (Carlos Valdes). Joe (Jesse L. Martin) and Cecile’s (guest star Danielle Nicolet) relationship takes a big turn. Hanelle Culpepper directed the episode written by Bronwen Clark & Joshua V. Gilbert (#320). Original airdate 5/2/2017.Arrow 5x20 Underneath
OLIVER AND FELICITY ARE TRAPPED — Things get intense when Oliver (Stephen Amell) and Felicity (Emily Bett Rickards) are trapped in the bunker together. Meanwhile, Lyla (guest star Audrey Marie Anderson) and Diggle (David Ramsey) deal with their marital issues. Wendey Stanzler directed the episode written by Wendy Mericle & Beth Schwartz (#520). Original airdate 5/3/2017.