Big Bad Beetleborgs

In the second to last episode of the first season, the Magnavores steal a picture of a new villain named Nukus from Art Fortunes office. They bring him to life to enlist his help in destroying the Beetleborgs.

Nukus assists them by planning devastating attacks on the city and creating Borgslayer, a hybrid of all the Magnavore monsters. Unbeknownst to the Magnavores, Nukus was actually plotting to get rid of them.

Nukus tells Van and Trip who were fleeing Charterville during Borgslayers attack to their father's country estate how to defeat Borgslayer, and orders them to take the information to the Beetleborgs.

They succeed in destroying Borgslayer, causing the Magnavores to be swept back into the comics.

In the last episode of the first season and the first episode of the second season, Nukus challenged the kids to one last battle and despite Art's warning that he is too powerful, they face him anyway.

Nukus quickly wipes them out, and destroys their armor, weapons, and powers.