Added by on 2015-11-26

A Tale of Two Stans. Trapped under the Mystery Shack, Stan has to reveal his portal and his past to Dipper and Mabel, along with the secrets of his twin brother, Stanford. In the end, the agents leave after having their memory erased, and Stanford decides to live in the underground lab under the Mystery Shack, however, Grunkle Stan makes him promise he will leave the kids alone.