Throughout history, the builders and engineers who paved our way out of the caves and into the modern world have also caused some of our worst disasters. What happens when their calculations prove wrong and it all comes tumbling down?
| Name | Type | Role | |
|---|---|---|---|
| Dean Vallas | Writer | ||
| John F. Kennedy | Guest Star | ||
| Charles Perrow | Guest Star | ||
| Ralph Nader | Guest Star | ||
| Mary Kahl | Guest Star | ||
| Roger McCarthy | Guest Star | ||
| Jim Kahl | Guest Star | ||
| Bill Mackin | Guest Star | ||
| Lyndon B. Johnson | Guest Star | ||
| Mary Schiavo | Guest Star | ||
| Story Musgrave | Guest Star |