Teenage Mutant Ninja Turtles #4

This volume collects issues #13–16 of IDW's 2013 Teenage Mutant Ninja Turtles series, continuing the storyline as the Turtles confront the lingering consequences of their father figure Splinter's past. The arc delves into the origins of the Foot Clan's betrayal and the sins that haunt Splinter, while also exploring the growing tensions between the brothers and their allies. Key plot points include the introduction of the character Alopex and the deepening of the feud with the Shredder.