Jessica Martin (Kim Basinger), a high school biology teacher, takes her son Ricky to the school bus. After she returns home, several men kidnap her and confine her in the attic of their safe house. Ethan Greer (Jason Statham), the group leader, smashes the attic's telephone. Jessica uses the wires of the broken phone and randomly dials a number. She reaches the cell phone of Ryan (Chris Evans), a carefree young man who has just been dumped by his girlfriend, Chloe (Jessica Biel).
Jessica persuades Ryan to go to the police station, where he briefly reports to Mooney, but has to leave to avoid losing connection. Ethan asks Jessica about something, which she denies knowing, and leaves to get Ricky. Overhearing them, Ryan gets to Ricky's school, only to see the boy kidnapped. He hijacks a security officer's car and gives chase. When his phone battery runs out, he takes the gun in the car, cuts in line at a shop and buys a charger.