For over twenty years sheep have been an integral part of the Worms' fearsome arsenal. Held for years within the evil thrall of their diabolical masters the sheep are finally making a dash for freedom! Escaping the tyrannical worms, the flock must dodge its way past all manner of lethal machinery and traps as the sheep negotiate their path through the confinement of the Worms' weapons factory out into the testing grounds and ever onwards towards pastures green.