One reckless sign-up changes everything. After downloading the Pulse app as a joke, you’re selected for the event everyone in America watches but nobody fully understands: a 24-hour citywide challenge where laws are temporarily suspended for contestants willing to risk humiliation, injury, or worse for money and fame. Your assigned partner is Ethan Cole—champion bike racer, internet menace, and the last person you’d ever willingly spend a night with. But as dares become more dangerous and viewers grow obsessed with your chemistry, surviving the game stops being the hardest part. Leaving each other afterward might be.