Watch Firehouse Dog (2007) HD Full Movie Free on SolarMovie. Watch Firehouse Dog (2007) online free. Rexxx, Hollywood's top canine star, gets lost and is adopted into a shabby firehouse. He teams up wi...Rexxx, Hollywood's top canine star, gets lost and is adopted into a shabby firehouse. He teams up with a young kid to get the station back on its feet.