4 - 1The Invisible Potty / Drake's Circumnavigation Jan. 11, 1978- 4 - 2The Secret War / The Potty Roman Games Jan. 18, 1978
- 4 - 3The Potty Lifeboat / U.S. Independence Jan. 25, 1978
- 4 - 4The Fun Factory / The Potty Bypass Feb. 01, 1978
- 4 - 5The Potty Safari Park / The Potty in the Iron Mask Feb. 08, 1978
- 4 - 6Theseus and the Minotaur / The Great Potty Escape Feb. 15, 1978
- 4 - 7The Hillbillies / The Private Enterprise Monastery Feb. 22, 1978