The turtles seek out the fragments of the eye of Sarnoth, a crystal with unimaginable power. After finding the first fragment, Shredder steals it and uses it to shrink the turtles. Now Splinter and April must intervene. April is able to enlarge the Turtles, but our heroes lose in the end as Shredder escapes with the first fragment.

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.