Take a look at footage, plus images from the "Supergirl" episode "In Search of Lost Time", directed by Andi Armaganian airing April 23, 2018 on The CW:
"...when 'Myr'nn' (Carl Lumbly) inadvertently causes psychic disturbances at the 'DEO', 'Supergirl' (Melissa Benoist) must work with 'J'onn' (David Harewood) to contain the resulting chaos.
"Meanwhile, 'Mon-El' (Chris Wood) begins training 'Kara' in fighting techniques he learned in the future for the battling of 'Worldkillers'..."
Click the images to enlarge and Sneak Peek "Supergirl: In Search Of Lost Time"...