Episode three of the action series’ third season showed the titular actor, 42, stripping down and swimming through tough waters to make a midnight escape from his undercover mission. While fans were awestruck by his chiseled abs and soaked body, Ritchson told Entertainment Weekly that his memories from filming the sequence were not as fond.

The actor breaks down the splashy scene in episode 3 that gave him flashbacks to playing Aquaman on "Smallville."

Most DC fans today tend to think of Jason Momoa when they think of Aquaman. But before Momoa played that water-bound member of the Justice League, none other than Alan Ritchson—Jack Reacher himself—played Aquaman on the long-running CW Superman series Smallville.