Big Mouth Season 4 Episode 10 - What Are You Gonna Do? Episode Title:What Are You Gonna Do?.Episode Description:Following the events of the previous episode, Nick's body has been taken over by his darker future self "Nick Starr", who proceeds to push away his friends with his behavior, leaving the present Nick as a "lost soul" in ghostly limbo with Duke. Meanwhile, Matthew comes out to his father, who admits that he had always known and accepts him and comforts him by saying his mother will understand in time...