A Better Mousetrap

The turtles were setting things up in their new lair and getting things from their old lair as the episode begins. Donatello was looking at a broken robot from the earlier attacks, trying to figure out how it worked, when a news item came on.

Dr. Baxter Stockman was showing off some of the robots, called the Stocktronic Mousers. With the help of lab assistant April O'Neil, he showed of their capabilities. After the demonstration, April discovered that half of the Mousers weren't transmitting a signal. April wanted to get to the bottom of it, but Stockman brushed it off and excused himself to meet with an important financial backer.

At the meeting, Stockman spoke with a mysterious man about the Mouser's first field test. The man was unhappy with the results, but Stockman explained the test was supposed to expose flaws and the Mousers were being upgrading for greater durability. Little did they realize that April was eavesdropping on them.

Back at the turtle lair, the turtles were training. After training, Raphael tried to sneak off to deal with Stockman, but was stopped by Leonardo. While they fought, Donatello pasted by chasing the Mouser he fixed along with Michelangelo. Soon, the fight was forgotten and all the turtles were chasing the Mouser.

At the lab, Stockman left for the day, leaving April free to investigate what he was up to. Soon, she came across a new icon: a symbol that looked like a foot. Clicking on it opened a hidden door. It led to an elevator, which April rode down.

While chasing the Mouser, the Mouser destroyed a support for a water main. The water main broke, washing the turtles away. They were able to grab a pipe and swing themselves onto the wall. From there, they were able to continue the chase. The Mouser almost lost them by chasing a ride on the subway, but the turtles were able to catch up on the next subway.

At the bottom of the elevator, April discovered a secret factory manufacturing Mousers. While looking around, she accidentally tripped an alarm. While going through Stockman's computer files, she was interrupted by Stockman himself. He put her into the factory and activated the Mousers in order to get rid of her. She was able to defend herself for a while with a fire extinguisher, but the Mousers broke it quickly. She managed to escape to the sewers, but soon got lost.

Meanwhile, the turtles found the Mousers. Unfortunately, there were so many that they found themselves cornered. They quickly discovered that the Mousers were tougher and the only was to destroy them was to slice of the heads. They quickly defeated all the Mousers, but were left with none to follow.

Meanwhile, the Mousers had caught up with April. She ran, but was soon cornered. Just as the Mousers attacked, the Turtles destroyed them, saving her life. When April saw the turtles, she fainted.