Watch Home Alone 3 (1997) HD Full Movie Free on SolarMovie. Watch Home Alone 3 (1997) online free. Alex Pruitt, an 8-year-old boy living in Chicago, must fend off international spies who seek a top-s...Alex Pruitt, an 8-year-old boy living in Chicago, must fend off international spies who seek a top-secret computer chip in his toy car.