In a parallel present where the latest must-have gadget for any busy family is a ‘Synth’ – a highly-developed robotic servant that's so similar to a real human it's transforming the way we live.
As synths begin to gain consciousness all over the world, a mysterious organization starts hunting them down. Leo (Colin Morgan, The Fall) and Max (Ivanno Jeremiah, Black Mirror) clash over how to protect the self-aware synths, while a renowned AI scientist (Carrie-Anne Moss, The Matrix trilogy) joins a global tech company preparing to release a revolutionary new product.