Flynne Fisher is a brilliant gamer who works a dead-end job to support her brother and ailing mother. When her brother enlists her help in an advanced game, Flynne sees something she shouldn't, bringing danger to the family's doorstep.
Mercenaries raid the family home. Seeking answers, Flynne returns to the headset and learns it is not a game, but a time machine that goes 70 years into the future. Flynne makes a deal with Wilf and Lev and agrees to help find Aelita.
Flynne returns to London and admits she's starting to trust Wilf. Back in present day, yet another attack is staged against Flynne and Burton resulting in more people being dragged into the plot. Flynne decides to take the fight to Cherise.
Flynne and Wilf discover Aelita's connection to the neoprims, which are trying to destroy the London we know. Inspector Lowbeer appears in London and demands to meet Flynne, Burton and Conner.
Flynne, Burton and Conner meet with Lowbeer and are put to the test. Meanwhile, Ella's life is in danger, and Tommy deals with the Sheriff and Corbell Pickett his own way.
Lev sabotages Flynne's treatment. Ash finds an unlikely ally. Wilf discovers some unsettling truths about Aelita. Flynne tries to save her world from Cherise.