S1, E2: When Dipper and Mabel hear rumours of a sea monster living in the lake, they ask Soos to take them out on the lake to try and prove that the monster exists.
Starring Will Forte, Gregg Turkington
S1, E2: When Dipper and Mabel hear rumours of a sea monster living in the lake, they ask Soos to take them out on the lake to try and prove that the monster exists.