[s1e21] Return To New York: Part 1 -

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.

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 [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. The group arrives at their old lair to

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. Plot Summary Using the Battle Shell as a