In the episode, Slog accidentally hits Fart and gets bitten by a baby and turns into one. He sadly, infects all the other Disgustoids except Slog and transforms them into babies. The baby that bit Fart was a werebaby. Slog didn't get bit and has to make a serum from the grossest parts of a real human baby to cure the bros. Slog finds a woman, and demands the gross parts of her baby in many hilarious ways.
In this episode, everyone thought Slog was an irresponsible baby. The problem with that theory is that he's more immature than irresponsible. The fact he does everything in his power to save them by the end of the episode, the fact he's always the first to apologize for messing up, and the fact he shows concern most of the time for all his friends would prove he has some sense of responsibility.
Festro talks the least in this episode, than in any other.
This is the 2nd episode that primarily focuses on Slog. The other one was Party Slog.