Ever since his true identity was revealed, the question of how J'onn J'onzz became Hank Henshaw has been on the minds of Supergirl fans. An upcoming episode, appropriately entitled "Manhunter", will finally reveal J'onzz's story.
Here's the official episode description:
J’onn J’onzz reveals the details of meeting Kara and Alex’s father, Dr. Jeremiah Danvers (Dean Cain), and assuming Hank Henshaw’s identity. Also, Kara debates trusting someone new with her secret identity and Siobhan (Italia Ricci) plots against Kara.
CBS also released a still from the episode, showing Supergirl in action.
"Manhunter" airs Monday, March 21 on CBS.