Episode list

Hector is super-sizing at fast-food restaurants too much which not only makes him gain weight, but it also gives a cholesterol named Stickety Lipid, the chance to kidnap a fat cell family's child in an attempt to clog an artery. Ozzy and Drix (and the new navigational system, installed by Drix, named Backseat) must return the huge blob to his parents in time. Hector must also get in healthier shape.

Drix is getting tired of having no street smarts so he hires a teacher. The problem is who he chooses as his teacher, a criminal.

Strep-finger is back and he has a surprise for Ozzy: a parasite that grows inside him.

Maria's brother Ricardo appears. Maria considers him the family black sheep. As he tries to prove himself his past catches up with him.

When a mosquito bite transfers Ozzy and Drix into the body of a boy, Hector Cruz, another germ comes with them. It is up to Ozzy and Drix to capture this germ, Scarlet Fever, before it has disastrous consequences.

Ozzy crashes his car into a nerve causing Hector's leg to fly out. Normally that wouldn't be much of a problem, but this time Hector accidentally tripped the local school bully, getting him into a fight after school.

Ozzy becomes jealous of a super agent (Penicillin G.) who has been injected into Hector to track down a powerful germ known as Strepfinger.

Hector has head lice. As the authorities don't take the problem seriously Drix and Ozzy fights the lice on their own outside of Hector.

Hector has been hanging with the cool kids at school and tried smoking. This has brought in the addictive Nick O'Teen and his associates who want to enslave all cells in Hector.

As Hector finds a stray dog outside, an allergen is wrecking Hector's insides. The size changing allergen alternates between a huge monster and a meek guy. At the same time Drix finds a pet dog cell of his own.