A rollover accident sparks a mystery; K-9 unit finds a stash of cocaine; a woman is surprised when a soldier returns.
A loaded gun puts M.I.A. on high alert; a money-sniffing dog finds a stash of cash; a terror suspect enters security with a concealed weapon.
A security threat triggers a SWAT response; a mob of 600 unruly passengers test the limits of the M.I.A. team.