Four earthlings are recruited by the mysterious Oz and are honed into a cohesive fighting force against the Shadowmen, a group of fallen angels hell bent on the destruction of life as we know it. Invincible is dangerously close to being unbelievable, but the corny comic strip style saves it from utterly unintentional farce. By no-means good but if you've temporarily misplaced your frontal lobe (or it's drowning in alcohol) it does the business.