Space invaders has no discernible plot other than "ooh noo, space invaders!!!"

(s0WmVHAwZgpG, Fri 12 Jan 2007, 19:59, archived)

Its a metaphor for an eternal struggle - a battle that can never
truly be won - it's a classic plotline :D
( FoldsFive, Fri 12 Jan 2007, 19:59, archived)