Upon finding the second fragment of the Eye of Sarnoth, Shredder uses it as a power source for a supercomputer named Omnis, in the hopes of opening a portal to Dimension X. Meanwhile, the Turtles must deal with machines that suddenly go haywire all over the city.

Shredder & Baxter Stockman switch meatballs on some pizzas, used as prizes in a contest, with some weird alien eggs from Dimension X. The Turtles must battle the Xenomorph-like creatures that hatch from the eggs in order to save the city.