The Shredder Strikes, Part 1

While in their lair training, the Turtles argued about which of their weapons are best. Leonardo won their sparring match and claimed that the katana is the superior weapon. Splinter defeated Leonardo with his cane to teach him that the warrior is more important than the weapon.

Confused and frustrated by the way he was treated, Leonardo went to the roofs to cool down. A nearby Foot soldier shot an arrow at Leonardo with a message. The note was from Oroku Saki, inviting Leo to meet him at a nearby warehouse. Leo decides to go to the warehouse alone. Little does he know that the rest of the Turtles are watching him.

Leonardo entered the warehouse while his brothers watched through a skylight. He was attacked by thirteen ninjas, but defeated them quickly. After the Foot were all defeated, Saki appeared and congratulated Leo on his ninja skills. Saki told Leo that he lead the Foot and that he is trying to rid the world of a great evil. He invited Leonardo and the other Turtles to join his fight. Sensing Leo's hesitation, he told Leo to think about his offer and gave Leo an ancient katana as a gesture of goodwill.

This meeting was also observed by a couple of mysterious agents. They reported their findings to a council of individuals. The council told their agents to continue to watch the Turtles and destroy the Turtles if they join Saki.

Once at the lair, the Turtles confronted Leo about the secret meeting. Leo tried to explain Saki's position, but the others didn't buy it. The argument turned into a fight between Leo and Raphael. In the end, Leo decided to consult Splinter. After hearing the story, Splinter told the story of his early life.

Splinter was originally the pet rat of ninja master Hamato Yoshi. He explained how Saki, AKA The Shredder, along with his henchman, Hun, killed his master. He told how he escaped to the sewers, found the Turtles, and was exposed to the mutagenic ooze.

The next day, Leo and his brothers returned to the warehouse. They gave the sword back to the Foot ninja there and tell them to tell Saki "No thanks". A battle ensued, but the Turtles take the Foot down pretty easily. Just when they thought the battle was over, Hun arrived. They had trouble with Hun, but Leo managed to defeat him by kicking his through a skylight. When they thought they were done, Saki arrived in his Shredder armor with more Foot ninja. He told the Turtles that if they aren't with him, they're against him and would have to be destroyed.