Dipper wants to correct a mistake he made in the past with assistance from a time machine. Mabel is overjoyed when she wins a pet pig at a fair.

Blendin returns to face off with Dipper and Mabel in a futuristic battle that could trap them forever in time jail.

Mabel makes plans for her and Dipper's 13th birthday party; Dipper ventures below the town and discovers its most shocking secret.

Bill has returned to take down the Pines family. But this time he has brought some of his friends with him.