Emmett's new venture yields big results for his bottom line but strains his personal life. Kiesha and Jake chart exciting new career paths. Victor awaits the election results. Kevin's freedom comes at a cost. Papa falls for an older woman, while Jada advises her single friends. Douda makes a deal. Season premiere.
四个情同手足的乌龟少年一直生活在隐秘的下水道中，在师父（成龙 配音）的训练下，他们成为了功夫高超的“忍者神龟”，渴望被人类接纳的四小只，在人类朋友艾普的帮助下，开始追踪一个神秘的犯罪集团，但随着一支强大变种生物军队的降临，同样属于变种生物的忍者神龟们知道，这下**烦来了……
