In the epic poem coda to the labyrinth smuggler saga, Seth Thomas lead his grouping of at large Gladers on their concluding and most unsafe missionary post yet. To salvage their friend, they must interrupt into the legendary Last metropolis, a WCKD-controlled maze that may turn out to be the deadly labyrinth of all. Anyone who make it out live will get answer to the question the Gladers have got be ask since they firstly arrive in the labyrinth.