Raphael: You might ask what we're doing in a spooky old amusement park at night. You might ask what looking for or what's looking for us. You might ask why we're being attacked by what looks like a bunch of freaked out rides and why we're getting our shells kicked. Yeah, you might ask all that, but just don't. I ain't got time for questions right now.
Nano, the nanorobot who met his demise in the junkyard, reawakens and reassembles. With a newfound motivation to create a family, Nano breaks his "father," Harry Parker, out of Rikers Island and kidnaps his "mother," Dr. Richards, from her laboratory. When his "family" doesn't turn out as he hoped, Nano begins to wreak havoc on Coney Island, where April and Casey happen to be on a "not-a-date."
Casey Jones: Hey! That sneaky little green nerd just stole my date!
Michelangelo: Step on the turtle win a prize.
Second appearance of Nano.
Second appearance of Harry.
The reward money is given to April O'Neil who planned on using the money to rebuild her shop that was destroyed by The Shredder.