Timmy helps Mark Chang celebrate a Yugopotamian holiday in Dimmsdale, but then finds out that each day of F.L.A.R.G has their own strange meaning that will happen to anyone who celebrates it. Timmy has to handle celebrating F.L.A.R.G with Mark, because if the alien's holiday is interrupted, his appendix will blow up and the planet will be destroyed.

Feeling guilty about being unable to show up at Tootie's birthday party, Timmy loans his fairy godparents to Tootie for the rest of her birthday, but has to subsequently stall her before she reveals the truth.