Watch The Darkest Minds (2018) HD Full Movie Free on SolarMovie. Watch The Darkest Minds (2018) online free. After a disease kills 98% of children, the survivors develop powers and are declared a threat. 16-ye...After a disease kills 98% of children, the survivors develop powers and are declared a threat. 16-year-old Ruby, escapes the government facility and joins a group of rebel teenagers ready to fight the government forces out to get them.