After a recent string of robberies at well-established casinos, Nick and Amanda are hired to guard one that has yet to be robbed. However, their efforts are in vain, as they are knocked out with gas and the casino is robbed anyway. Nick is determined to bring those responsible to justice, but there is one problem--the ringleader is Jeremy Dexter, an immortal with whom Amanda was once involved, and she is determined to protect him. Also on the case is an Interpol agent who is convinced that one of Dexter's previous robberies caused his brother to commit suicide.