Ep 6. I, Monster

In the Teenage Mutant Ninja Turtles season 4 episode 6 titled "I, Monster," the Turtles begin to suspect that April's father is hiding something when he suddenly cancels a camping trip. While investigating, the turtles are attacked by a mysterious creature that seems to have a connection to April's father.

As they try to unravel the mystery, the Turtles soon discover that the creature is actually a mutated version of Dr. Tyler Rockwell, a scientist who had been working on a chemical to enhance human abilities. However, the experiment went wrong and turned him into a monstrous creature.

As they try to find a cure for Dr. Rockwell's mutation, the Turtles also uncover a plot by the evil Foot Clan, who are attempting to acquire the chemical for their own nefarious purposes. With the help of April, Casey Jones, and the Mighty Mutanimals, the Turtles must not only save Dr. Rockwell but also stop the Foot Clan's plan before it's too late.

Throughout the episode, tensions rise as the Turtles struggle to deal with Dr. Rockwell's monstrous form, which puts them in danger and complicates their mission. The emotional stakes are high as they confront the possibility of a cure that could turn Dr. Rockwell back to his human form, but at the cost of the chemical falling into the wrong hands.

As the action heats up, the Turtles must use all their ninja skills to battle the Foot Clan and their advanced technology. The episode is filled with intense fight scenes and fast-paced action sequences, as well as moments of humor and heart as the Turtles continue to navigate their complicated relationships with each other and their allies.

Ultimately, the Turtles are forced to make difficult choices as they fight to protect their city and those they love. With its high stakes and exciting plot twists, "I, Monster" is a gripping and thrilling episode that showcases the unique blend of action, humor, and heart that has made the Teenage Mutant Ninja Turtles franchise a beloved classic for generations of fans.