Oroku Karai has spent her life in the shadow of lesser men: first her father, then her grandfather, Oruku Saki, the so-called "Shredder." But no more. Now the Foot Clan is hers to command, and she has grand designs on seeing her clan reach its full potential. Karai has learned that Saki shared mystical secrets with the Teenage Mutant Ninja Turtles-secrets meant only for those loyal to The Foot. As she and those loyal to her set out to master the ancient way of the ninja, she'll discover that she's not the only one who lays claim to the Foot Clan's destiny...