The Penguin episode 7 recap and Easter eggs: Oz Cobb's dark past comes to light in the Batman spin-off
The episode begins with a young Oz trying to convince his mom to watch a movie with him, only for his brothers – Benny and Jack – to interrupt. It's clear Oz doesn't get along very well with his siblings, but the three of them head out for a day out in Gotham, meeting local gangster Rex along the way as their mom works for him.