Watch Who'll Stop the Rain (1978) (1978) HD Full Movie Free on SolarMovie. Watch Who'll Stop the Rain (1978) (1978) online free. A Vietnam veteran gets conned into helping an old army friend smuggle drugs into the country but end...A Vietnam veteran gets conned into helping an old army friend smuggle drugs into the country but ends up having to go on the run with his friend's wife when the deal goes sour.