Return To New York: Part 1 — [s1e21]

After initially being overwhelmed by the invisible attackers, the Turtles adapt. They use fire extinguishers to coat the area in dust, revealing the ninjas' silhouettes, and Donatello uses electro-magnetic shurikens to short-circuit their cloaking devices. Key Reveal & Cliffhanger

April O'Neil acts as "Mission Control" from the lair, using her knowledge of Baxter Stockman's systems to infect the Foot’s communication network with a computer virus, effectively blinding their tactical coordination. [S1E21] Return to New York: Part 1

Using the Battle Shell as a remote-controlled decoy to draw Foot Clan forces to the lower levels, the Turtles sneak into the building through the sewage system. Using the Battle Shell as a remote-controlled decoy

The group arrives at their old lair to find it deserted, realizing the Shredder believes they are dead—an advantage Splinter insists they use to launch a surprise attack. They face an army of Foot Ninja and

The Turtles begin a systematic ascent of the skyscraper. They face an army of Foot Ninja and the formidable Foot Tech Ninjas , who use advanced cloaking technology to remain invisible.

In of the 2003 Teenage Mutant Ninja Turtles series, titled " Return to New York: Part 1 ," the Turtles and Master Splinter return to the city after three months of recovery at Casey Jones' farmhouse. Their objective is a final assault on the Shredder’s headquarters to end his threat once and for all. Plot Summary