Mabel and Dipper return to Gravity Falls three years after their life-altering summer vacation spent with their Grunkle Stan, to find that Gravity Falls never stops being, well, weird. As the twins encounter old friends and reconnect with the supernatural inhabitants of Gravity Falls, new dangers lurk just outside of the knowledge of Uncle Stanfords old journals.

Gumball is having the worst day ever, and it's not ending there. In fact, it's not ending at all! Gumball is stuck in a time loop and if he ever wants tomorrow to come he has to get to the bottom of what's causing it.