Leo fears his act of mercy has come back to haunt him when Xever holds a local noodle shop owner hostage.

When simultaneous threats from the Purple Dragons and Baxter Stockman’s mechanical Mousers force the Turtles to split into two groups, Donnie & Mikey must prove that their “B Team” is just as valuable as Leo & Raph’s “A Team.

The Turtles get their first look at high school when April's school project draws attention from the Kraang.

After witnessing the Kraang in action, Karai realizes the seriousness of the alien threat and proposes an alliance with the Turtles....unless the Shredder finds out.