Darkness on the Edge of Town

The Turtles were in the lair, enjoying some extreme sports when the lights went out. Splinter suggested they go topside to investigate the problem. While passing the Metropolitan Museum of Art, they noticed some Foot Ninja breaking in. The Turtles followed them into the museum.

Once inside, they discovered the Foot were trying to steal a sword. The Turtles tried to get it back, but the Foot managed to escape with it. Shortly after, the police arrived, forcing the Turtles to flee. They managed to grab an insignia from one of the Foot's uniforms. When they showed it to Splinter, he forbade them to investigate further and meditated on the matter.

At Oroku Saki's palace, Hun presents the sword. The sword gives off a strange vibration that requires all, but Saki to wear a glove when carrying it. After examining it, Saki tells Hun to bring it to the Foot Tech Division.

Meanwhile, the Turtles were hanging out in the lair when there was another power outage. Donatello was able to track it to South Street Seaport. Reasoning that they were told not told they couldn't investigate power outages, the Turtles went to see what was going on.

Once there, they saw a cannon-like device using the sword as a power source. Once activated, the device vibrated and emitted a beam that pushes water away, exposing the river's bottom. The vibration caused nearby buildings to shudder violently. The Turtles decided to shut down the device.

As the Turtles battled, the Foot technicians swept the river bottom with the beam. When they found the thing they wanted, they hauled it away with a helicopter. The technicians attempted to to shut down the cannon when the Turtles interrupted. A blocked laser caused the cannon to go out of control. The turtles managed to shut down the cannon and grab the sword just before the police arrived. The Turtles brought the sword back to the Lair, where Splinter kept it for further study.

Saki was angry with his troops when they returned. Not only was the thing they brought not what he was looking for, but they also lost the sword. The troops explained that they were attacked by ninja lizards and Saki vowed to rid of the pests.