Stream Alpha Gang Online Free – Watch Full Movie from Home at 123Movies. . Alpha Gang are aliens, sent on a mission to conquer Earth. Armed and dangerous, they show no mercy, until they catch the most toxic, contagious human disease of all: emotion. Their plans for world domination are in danger of derailing once they start to feel joy, fear, empathy and, worst of all, love... but hopefully they can still annihilate mankind before it's too late.