If the original Maze Runner was a cross between Lord of the Flies and The Hunger Games, this next instalment, based on book two of James Dashner's young adult trilogy, channels Mad Max and Divergent - the fight for survival now takes place among demolished cities and desert landscapes.
The first film was all about getting out of The Glade, a field surrounded by massive concrete walls, and a constantly changing maze.
In an underwhelming finale, Thomas (O'Brien) and Minho (Ki Hong Lee) led the remaining survivors out of the Maze, and they were whisked away by soldiers in helicopters. We also found out that solar flares and a virus that turns humans into zombies have destroyed Earth, and the only hope for humanity is to discover an antidote.
Dr Ava Paige (Clarkson), who ran the Maze programme, believed the answer could be found in a genetic abnormality present in Thomas and his friends, who are believed to be immune to the virus.
Any hope of salvation you felt at the end of The Maze Runner quickly dissipates in The Scorch Trials, as the six "saved" Gladers find themselves in a large industrial bunker run by Janson (Game of Thrones' Aidan Gillen), with Thomas immediately suspicious about what is going on.