Zgodba spremlja ameriškega znanstvenika J. Roberta Oppenheimerja in njegovo vlogo pri razvoju atomske bombe. Znanstvenika Oppenheimerja je upodobil Cillian Murphy, njegovo ženo Katherine »Kitty« Oppenheimer, ki je biologinja in botaničarka, pa igralka Emily Blunt. Oskarjevec Matt Damon je upodobil generala Leslieja Grovesa ml., direktorja projekta Manhattan, igralec Robert Downey Jr. pa je ustanovni komisar ameriške komisije za jedrsko energijo Lewis Strauss.
A mysterious criminal steals a secret state-of-the-art time machine, intent on destroying America as we know it by changing the past. Our only hope is an unexpected team: a scientist, a soldier and a history professor, who must use the machine's prototype to travel back in time to critical events. While they must make every effort not to affect the past themselves, they must also stay one step ahead of this dangerous fugitive. But can this handpicked team uncover the mystery behind it all and end his destruction before it's too late?
