Supergirl (III)
Episode 15 - In Search of Lost Time
On Air Date: 2018.05.16 (Wed)
Myr'nn, in fighting his dementia, inadvertently causes psychic disturbances at the DEO. Supergirl must work with J'onn to contain the resulting havoc. Meanwhile, Mon-El begins training Kara in fighting techniques he's learned in the future for battling Worldkillers. Lena provokes Sam to lose control and turn into Reign, just to make Sam accept that she has a supervillain inside herself.