1. Special Agent

6

. 5 September 1959. 26 min

Mel and Bill go on the case to bust up an international spy ring.

2. Time Bomb

7

. 12 September 1959. 26 min

With Bill set to testify as a key witness in an important government trial, Mel discovers a time bomb in their apartment and sets out to find his partner—who is tinkering in the garage.

3. Teeth of the Watch Dog

7

. 19 September 1959. 26 min

The Bureau hatches a scheme for Mel and Bill to infiltrate the apartment of an actress who holds a list of high-ranking espionage agents.

4. Death Trap

7

. 26 September 1959. 26 min

Mel is thrown from Bill’s car during an accident, which forces the pint-sized special agent to avoid the pitfalls of both man and beast in order to stay alive.