Watch Battle for the Planet of the Apes (1973) (1973) HD Full Movie Free on SolarMovie. Watch Battle for the Planet of the Apes (1973) (1973) online free. Ten years after a worldwide series of ape revolutions and a brutal nuclear war among humans, Caesar ...Ten years after a worldwide series of ape revolutions and a brutal nuclear war among humans, Caesar must protect survivors of both species from an insidious human cult and a militant ape faction alike.