“The Desperate Hour” (**1/2 out of four) was a mildly gripping suspense thriller about a devoted mother (Naomi Watts) out on a run in the wilderness who turns into frenzy and panic when her town is suddenly put on lockdown and she realizes her son may be in danger and she has to find a way back to civilization. Watts is virtually the whole show here and (as usual) proves she is a commanding actress but there isn’t enough story here to sustain an entire feature-length film and after a while film starts to peter out. A solid effort from director Phillip Noyce (“Dead Calm”) that overall just misses.