Mr and Mrs Tripp are out of town and have put the boys in charge of the house while they're gone. Nick takes the responsibility very seriously, but TOBY'S relishing in the freedom and his laid back approach is stressing Nick out.
Magmion depletes oxygen from the underwater realm, forcing residents to become his slaves or face death. The spell also leaks into Venture Falls, and pockets of air begin disappearing. Elsewhere, Toby cares for the class pet over the weekend.
An ocean-based Air Gormiti tribe is suffering from a devastating climate change. If The Lords of Nature don't act fast, not only is the citadel going to plunge into the range of an erupting volcano, but the entire Earth's water supply will evaporate.