Combat!: The Duel (1964) (TV)

[spoilers] Saunders hitches a ride with a trucker who is transporting weapons and ammunition to Lorraine, where it seems that Saunders' men are in great danger from the Germans. They hear a German tank coming their way exactly when a tire goes flat. They have the option of running for their lives, thus leaving the men in Lorraine in a tough spot, but Saunders won't have that: he tells the truck driver to change the tire while he goes to the adjacent hills and tries to stall the tank for as long as he can. He starts shooting at it, then sneaks near it and climbs on it. The tank operators eventually shake him off, but then Saunders inserts an object (a log, I think) inside the traction system, making its motion impossible. This only works for so long, but it gives time to Saunders to go back near the truck. The support system collapses while the driver is under the truck and it falls on him, trapping him there. Saunders changes the tire, but moving the truck would kill the guy under it. Noticing the tank has resumed its motion, Saunders goes back near it and places a flask with gasoline on it; then he shoots it, causing it to go into flames. Now he can go back and free his friend from under the truck.