Watch Spontaneous (2020) HD Full Movie Free on solarmovie.do. Watch Spontaneous (2020) online free. Get ready for the outrageous coming-of-age love story about growing up...and blowing up. When studen...Get ready for the outrageous coming-of-age love story about growing up...and blowing up. When students in their school begin exploding (literally), seniors Mara and Dylan struggle to survive in a world where each moment may be their last.