Fyootch has never tried Danny's favorite cereal. Danny's got a brain freeze. Danny really wants to play with his new chemistry set, but also promised to make his parents dinner.
Danny can't go to Sci-Fi-Fanta-Con cause he's sick. Danny and Fyootch can't get a burrito on Columbus Day. Old Man Duck Head is inadvertently made President!
Danny builds his dad a hermetically-sealed bubble for the family camping trip. Future Danny is held captive by aliens. Danny must escape detention to attend Reptile Hat Day.
When Future-Worm leaves Danny to do "one last job" for a shady character from his past, his insistence on doing it alone puts Danny and Future Danny in danger.
Embarrassed by his role in a holiday movie, Fyootch travels to Snordfest to make sure it never happens. The Douglas' leave Doug at the mall where he's adopted into a new family.
Ruby and Paco "babysit" an egg for a class project. Fyootch grows fake arms to enter a wrestling contest. Brad and Rad genetically engineer a Horseshoe Crab.
Danny swaps places with Future Danny. / When Danny gives Presto the future-magic-wand, the bad guy becomes more of a bad guy. / Future-Worm learns the price of sacrifice - again.
Fyootch's newfound love derails a planned road trip. Future-Worm loses his body...and Zarlid gets it! Steak poses as the Intergalactic President to prevent war.
The Gem Quest that Danny long ignored comes back to haunt him when Bug's beloved pet, Hank Flappington, is stolen for the gem-engine Danny gave Bug to power him.