The Turtles are shocked to find out one of their old foes from the past is still alive and well in the year 2105. Bishop has become a top agent in Earth's government, and even though he isn't after the Turtles, they don't trust him. But Bishop offers the Turtles an ultimatum if they wish to stop crime...

Mike finds that in 2105 someone else has taken on the mantle of Turtle Titan. Furious, he tracks down and challenges the 'imposter'. However when Triple Threat shows up and begins to create havoc, the two costumed heroes must put aside their differences...