She decides to teach grumpy old Uncle Stan a lesson or two in love and kindness by demonstrating that she can make more money at the Mystery shack than him by treating visitors nicely rather than being rude and cranky all the time.
But turns out, it is easier said than done. As Grunkle Stan heads off to win a fortune on a television game show, Mabel is left on her own to deal with not just lazy employee but an actual monster captured by none other than Dipper.
Will Mabel manage to prove herself in the eyes of Grunkle Stan? And more importantly can Mabel keep her calm amidst the chaos?