The TMNT face one of their biggest challenges yet as the diabolical Rat King sets off a chain of events that nearly brings Mutant Town to its knees! With Leonardo, Michelangelo, and Raphael away in search of new allies to join the good guys against Rat King's latest deadly gambit, it falls on Donatello and Jennika to lead the fight in Mutant Town against the terrible trio of Mayor Baxter Stockman, General Krang, and Madame Null. But...