Dirk comes to the rescue of his neighbor, Mr. Beasley, who is accused of having robbed a bank in the town of Heck. Dirk proves Beasley's innocence based on distance, rate, and time.
Title card of the episode
"But I realized I actually enjoyed it."
Dirk going through his checkbook
"Now, now, now, sir, I'm afraid you'll have to stop."
"You can't fight City Hall."
"Yes, but lots of people have red cars."
"You went to the movies in the morning?"
"Did anybody see you in the theater?"
"How fast does your car go, Mr. Beasley?"
"Yes. I think I can prove that Mr. Beasley could not have that bank at 12:00 noon"