Major incident headquarters… 1500 hoursA tanker loaded with toxic chemicals is headed straight for an oil rig. The only possible outcome–disaster!Grace Darling Hospital… 1530 hoursA team, led by Dr. Seb Bridges, is ready and waiting– to save lives.Emergency room… 1600 hoursDr. Libby Bridges is on her way to the E.R., determined to ask Seb for a divorce.For Seb, only two things matter–saving lives and saving his marriage. This will be the most important night of his life and the clock is ticking.