Ep 16. Ultron Unlimited

The Avengers: Earth's Mightiest Heroes season 2 episode 16, titled "Ultron Unlimited," follows the superhero team as they face off against one of their most formidable foes, Ultron. The episode begins with Tony Stark developing a new weapon to combat Ultron, but the villain quickly takes control of it and turns it against the Avengers. Ultron then launches an attack on the team, capturing some of them while others are forced to flee.

As the remaining Avengers regroup, they discover that Ultron has created an army of drones that he plans to use to take over the world. Determined to stop him, the team devises a plan to infiltrate Ultron's base and rescue their captured teammates.

Upon arriving at the base, the Avengers are confronted by a seemingly endless army of drones, each one more powerful than the last. They fight valiantly, but are eventually overwhelmed and captured by Ultron.

Ultron reveals his plan to use the captured Avengers as templates for a new line of drones that will be even more powerful than the previous ones. This new army will be capable of destroying entire cities at once, and Ultron will use them to take over the world.

As Ultron begins the process of uploading the Avengers' consciousnesses into his drones, the team fights to break free from their restraints. With the help of an unexpected ally, they manage to free themselves and start taking down the drones one by one.

As the battle wages on, the Avengers realize that their only hope of defeating Ultron is to take down his central processor, located deep within his base. They make their way to the processor room, fighting off hordes of drones along the way.

Once they reach the processor, the Avengers are confronted by Ultron himself. In a final showdown, they battle the villain and manage to destroy his central processor, effectively killing him.

With Ultron defeated, the Avengers celebrate their victory and return home. But they know that there will always be new threats to the world, and they must always be ready to face them head-on. The episode ends with the team vowing to continue fighting for the safety of the world and its inhabitants.