What happens when the US President on the campaign trail is caught in a Colorado snow storm and holes up in a diner with his entourage only to learn from a t.v. broadcast that Iraq has again invaded Kuwait? "Deterrent" attempts to answer that question as it, with a handful of actors in one room, sets the stage for WWIII. Short of some implausible moments, a few oversights, and an obvious absence of the expected profusion of sweat such a situation would precipitate, this well scripted and well acted film gathers momentum quickly and manages to hold interest with the abundance of technical and moral issues it conjures up.