The CW's Supergirl puts its usual big bads on the back burner this week for what series executive producer Robert Rovner is calling "a very emotionally charged episode," in which J’onn J’onzz is forced to face the reality that he may soon lose Myr’nn, the father with whom he was recently reunited, to dementia. Realizing his memories are starting to fade, Myr’nn digs deeper into his Martian faith, and in the process unwittingly unleashes psychic disturbances with detrimental effects to those around him. Truths are revealed that will forever change relationships, which are all a part of a larger arc for the series. "One the great things about writing for Supergirl is we have a great pallet of characters and circumstances to write to," Rovner said after a recent preview screening of the episode. "We always start with the characters, then tell stories that will propel them. It's very rewarding and exciting to be able to tell different types of stories and [see] how each episode pushes a character.