When
a prisoner transport plane carrying Deputy Sam Gerard as an escort
crashes, one prisoner, Mark Sheridan helps him rescue some trapped
prisoners and then escapes himself. Gerard and his crack team of U.S.
Marshals start their pursuit, but the simple fugitive situation soon
gets more complicated when Gerard learns that Sheridan is no mere
criminal and the story behind his incrimination becomes more and more
suspicious. At the same time, Mark Sheridan is out to find out the
truth himself while keeping one step ahead of Gerard.