As Fourarms, Ben is working to thwart an armored truck robbery by a tough and heavily-armed female gang leader named Joey, when he is attacked by a new set of Vilgax’s Mechadroids. Fourarm's defeats the robots, but Grandpa Max is injured in the melee. While Ben and Gwen look after Max in the hospital, Joey winds up merging with the leftover pieces of the Vilgax Drones and becomes Rojo – a cybernetic combination of the two. Vilgax is able to "persuade" Joey into retrieving the prototype for him. Eventually, Ben is able to defeat the new and improved Joey, but not before she delivers a disturbing message from Vilgax.