Years ago in Japan, a man name Hamato Yoshi was Japan's finest warrior. His pet rat who will be named Splinter, mimics his every movements and takes it by heart. Yoshi's rivalry was a man named Oroku Saki whom he compete with especially for the love of a woman name Tang Shin, but Shin only loves Yoshi. Instead of fight Saki in honor, he flees with Shin along with Splinter to New York, but Saki followed as he killed Shin first and killed Yoshi right after he returned home who witness his beloved's murder, which cause Splinter's cage to be destroyed as Splinter jumps out and attack Saki by clawing into his face, but Saki threw Splinter to the ground and slice Splinter's ear with his katana.