Sam Lawton is on his way to a company retreat with his colleagues. While their bus crosses the North Bay Bridge, Sam has a premonition that high winds will cause the bridge under construction to collapse, killing everyone except his ex-girlfriend Molly Harper, whom he manages to get across the bridge safely. Panicked, he persuades Molly, his friends Nathan Sears and Peter Friedkin, Peter's girlfriend Candice Hooper, his boss Dennis Lapman, and co-workers Olivia Castle and Isaac Palmer to leave just as the bridge collapses. After being interrogated by FBI agent Jim Block, the survivors attend a memorial service for their deceased coworkers where they are being watched by coroner William Bludworth.