Korea- U. S. Moves to Halt Advance by Red Army (part 1 of 2); June 1950; We see soldiers loading equipment into B-29s at March Field in California. We see machine guns being loaded and a plane taking off towards North Korea. From the ground, we see six planes flying together Then from the air we see Korea, and on the ground again, machine guns and trenches. A destroyed plane rests on the ground and so do injured and tired pilots. We see various shots of the US camps as they prepare for defense.