Savanti recruits Frankenstein's Monster and will soon unleash his creatures on the 21st Century.

When the 1987 version of the Shredder and Krang appear in the 2012 Ninja Turtles' dimension, they employ the present Bebop and Rocksteady, and find their plans succeeding better than ever. Meanwhile, The 1987 versions of the Ninja Turtles seeks help from the present Ninja Turtles, April O'Neil and Casey Jones to stop both Krang and Shredder.