Eric, totally annoyed with the fact his evil scheme went down the drain decides he needs extra help in eliminating the turtles once and for all. He creates more mutagen and decides to make his own elite ninja team to beat them at their own game. Unfortunately, he makes Bebop and Rocksteady, two idiotic gang members who have little idea of how to do anything other than bring down walls with their almighty fists.

April is now living with the turtles because Sachs wants her dead and topside is no longer safe for her. Splinter and April have begun her ninja training, which has Mikey really excited. He loves to watch April do ninja moves! His shell is quivering just thinking about it!!

The new team (Bebop and Rocksteady) plus Shredder - of course he survived the fall - lead the Foot Clan to take out the turtles once and for all.

Sachs is experimenting with dimensional technology and accidentally 'hacks' into Dimension X. Now, we find out that he had this window all the time, and that was where the first canister of mutagen came from. The pink brain creature on the other end has sent him the Mutagen Recipe whilst they try to perfect the dimensional window so they can send across whole armies.

In the meantime, they have to do something about that annoying rabbit that accidentally got transported into our world. Sachs has him in a cell and is doing tests on him, although his biology is much different to mutants. Sachs concludes that there must be a dimension out there with animals, not humans, who became the dominant species on their planet.

Shredder sends Bebop and Rocksteady to lure out the turtles by hurting civilians reminiscent of TMNT 2 where Tokka and Rahzar beat up a neighborhood. Raph tries to take out all three - Shredder, Bebop and Rocksteady - ends up with a bruised ego and finally let's Leo lead without being angry.

The rabbit from another dimension has been through some nasty mind altering drugs and now thinks that Sachs and Shredder are good guys. Working for the villains, Usagi joins the team hunting for the turtles.

Big fight coming at this time. Splinter has a score to settle with a certain armoured villain. Raph want to take on the two mutants who humiliated him. Don and Mikey are busy with the Foot Clan and Leo is up against Usagi. Both swords masters they are fighting to the death, until something in Usagi's brain kicks in. His sense of honour and nobility come shining through as he realises during the fight that the turtles are, in fact, the good guys.

In fact, it's at the very moment when Leo has a killing move that could end the fight, but ends up not killing Usagi. Usagi realises he's been used and switches sides. Now Leo and Usagi are fighting back to back.

I think I'll stop .... getting carried away lols