What happens
Batman and his butler Alfred search Col Harbor at dusk for a black yacht with two orange smokestacks, after a note in Robin's handwriting told Batman to meet him there. Batman's radio call to Clark Kent is cut off, leaving the two alone at sea in the moonlight. They spot a yacht on the horizon and race toward it at full throttle. Meanwhile Robin slips aboard the yacht and overhears a conversation between a man named Marsh and an old man called Mr. Grayson, who is searching for his missing grandson. Robin then hides in a chest in a captain's stateroom as Marsh moves about the room.
Col Harbor and the open sea at night, aboard a black yacht with two orange smokestacks
Characters: Batman, Alfred, Robin, Clark Kent, Marsh, Mr. Grayson
Listen for: Batman's radio call to Clark Kent and the conversation between Marsh and Mr. Grayson
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.