It is shortly after the destruction of the Rebel alliance base on Hoth. Most of the rebel transporters already escaped the planet, but there are still rebel troops left on the surface.
Last Rebel units try to escape from advancing Imperial troops. The young rebel soldier Jason Rico is trapped in a valley.
He is trying to escape on a TaunTaun, but a death squad of the empire is following his path and is approaching rapidly.
The squad is led by the female forceuser and assassin, with the codename "Siera".
