Far from going it alone, Hiro is now in the protection of a trio of fearless and daring yojimbots as he tries to find his way off this forsaken island. The samurai robots have rallied to his cause as he tries to track down a mysterious "rights holder" who seems to be the key to the young boy's salvation, following the death of his father. Together, Hiro and his entourage finally make it across the island to Tower 4, where their contact is said to be awaiting them. But the powers that be are not going to let them slip away quite so easily, leading to an epic confrontation with the deadliest robots the island has to offer. Will Hiro and the yojimbots be able to withstand one more attack, and locate the rights holder?