The Sealey farm. The Doctor has found some bits and pieces and starts his invent rolls as soon as he can. In a fit of pique at the Doctor not letting her help as usual, Jo heads off into the woods impulsively, followed by a concerned UNIT soldier, "Oi, come back Miss Grant, the Brig'll kill me!".
On the other side of the table, Private Jenkins looks on as Private Perkins is clubbed to death by an Auton.
The Autons breach the farm's defences just in time for the Doctor to discover a major weakness if the plastic villains are engaged in close combat.
...the Doctor saves the day. His sonic screwdriver halts the Autons, allowing the UNIT men to finish them off with ease.
UNIT and the Doctor break out of the farm and head off towards the edge of the table. Time for one last sonic/rifle butt combo I think.