The Earth comes under attack when the Triceratons mount a surprise invasion. Following an energy trail from the transmat device, Prime Leader Zanramon is convinced Professor Honeycutt resides on the planet and send his forces to apprehend all people thought to have been in contact with the Fugitoid. The Turtles do their best to evade capture, but come to the rescue of April and Casey when the two are taken captive and held at Central Park. The turtles manage to free the prisoners and are successful in saving April and Casey, but Donatello gets captured by the Triceratons.