Ep 4. Frenemy Mine / Maximum B.O.B.

Monsters vs. Aliens is an animated television series that follows the adventures of a group of monsters who must fight off various alien threats. In season 1 episode 4, titled "Frenemy Mine / Maximum B.O.B.," the monsters face their biggest challenges yet.

In "Frenemy Mine," Susan and Dr. Cockroach must team up with an unlikely ally - their arch-nemesis, Coverton. When an alien device begins to wreak havoc on the team's base, they are forced to put aside their differences and work together to stop it. Along the way, they discover surprising truths about each other and their shared past.

Meanwhile, in "Maximum B.O.B.," the lovable gelatinous creature B.O.B. gains superpowers after being exposed to a strange substance. While he revels in his new abilities at first, he soon realizes that they come with dangerous consequences. It's up to the rest of the team to save him from himself and prevent him from destroying the city.

As always, Monsters vs. Aliens delivers a healthy dose of action, humor, and heart. With its colorful characters and imaginative world-building, it's a show that's sure to entertain audiences of all ages.