The Rescue Mission is a LEGO Ninjago: Masters of Spinjitzu book that was released on February 24, 2015. It takes place within the plot of Season 4: The Tournament of Elements, during the events of the episode "The Invitation."
Ninjago™: Rebooted! The wise-cracking ninja reunite for a tournament--which could turn into a dangerous rescue mission.
Wanted: Zane, The Titanium Ninja! This new LEGO® Ninjago™ reader is based on the hit, animated Cartoon Network show.
Nothing's been the same since Zane sacrificed himself to save Ninjago from the Overlord. The ninja team is divided - Cole's working as a lumberjack, Jay's become a TV host, and Kai's fighting in an underground club. Only Lloyd remains true to the ninja's mission of protecting Ninjago.
But all that changes when the four friends receive a mysterious message inside a fortune cookie. They've been invited to Master Chen's island to compete in a tournament against other Elemental Masters. And there's reason to believe Zane is alive somewhere on the island.
Can the ninja work together to save one of their own?