Gravity Falls (2012)

S1E19 Dreamscaperers (1)

In the episode "Dreamscaperers (1)," Dipper, Mabel, and Soos embark on a surreal adventure inside Grunkle Stan's mind to confront a cunning dream demon unleashed by Lil Gideon. As they navigate the bizarre landscape of Stan's subconscious, the trio faces various challenges and bizarre manifestations of his thoughts. They must work together to outsmart the demon and save Stan from its nightmarish grip, all while grappling with their own fears and memories. The stakes rise as they delve deeper into the mindscape, testing their courage and friendship in this unique battle against darkness.