What happens
Superman returns to the underground city on the Moon, where Jimmy Olsen, Pocho and Professor Twiddle, together with the moon dwellers, face a swarm of giant red ants. Superman plans to protect the city by blasting a channel from an underground river, so the water will flood the city and drown the ants. Jimmy Olsen, Pocho and Professor Twiddle remain in a tunnel, waiting for Superman to return. Without warning, the moon dwellers begin drilling through the tunnel walls, and water starts to rise around the group. Superman, who is outside the tunnel, has not yet returned, and the friends are left in danger.
An underground city on the Moon, and nearby tunnels
Characters: Superman, Jimmy Olsen, Pocho, Professor Twiddle
Listen for: Superman's plan to flood the city and drown the ants, and the rising water in the tunnel
Written from the episode itself; it never gives away the ending. Every recording is remastered for the stream: cleaned of rumble, hiss and mains hum (and the old TV whine where we found it), then levelled in two passes to steady broadcast loudness, so one show is never quieter than the next.