US marshal Jimmy Flynn's mission to guard his witnesses in a safe house should be straightforward--until hit men breach the location with the intent to kill Isobel Carrolls and kidnap her son. Now it's up to Jimmy to keep Isobel and her child safe as they travel across state lines so she can testify against her criminal ex-husband. But with relentless gunmen anticipating their every move, his mission is a race against time. Can Jimmy keep them alive long enough to expose the truth...or will the dangerous pursuit cost them everything?