IDW’s Teenage Mutant Ninja Turtles comics synthesize and remix 40 years of Turtles lore and transform it into a single sprawling epic! This sourcebook collects and catalogs every character, every location, and every notable event into four issues by writer Patrick Ehlers and serves as a comprehensive companion to that epic.

As if there weren’t enough to worry about on Earth, there’s a whole other dimension out to get the Teenage Mutant Ninja Turtles! Issue #2 of the TMNT Sourcebook explores the deepest depths of Dimension X, imposing order on a war that has consumed countless planets for hundreds of years. This is a complete account of a dangerous and uncanny sci-fi galaxy: from Krang and the Utrom Empire to the Princess Trib and Neutrino resistance, from Rock Soldiers to sentient plants, from Triceraton invaders to shady G-Men defending the planet!