From the Earth to the Moon, Mars, and an asteroid in 2003. What does it say of NASA's long-term space mission in the show's fourth outing?

It’s the 1990s, and after soaring to the Moon, it’s off to Mars they go! And guess what? It guarantees as many surprises as it does thrills.

Its story of the first Mars expedition feels shallow, and it’s...held aloft by Harland Williams and his sense of humor? How’s that possible?