Earth, the near future. The Master - another renegade Time Lord and the Doctor's sworn enemy - arrives and allies himself with the Nestene Consciousness in an attempt to conquer the planet. But how can plastic flowers be an invasion weapon...?
| Name | Type | Role | |
|---|---|---|---|
| Robert Holmes | Writer | ||
| Dermot Tuohy | Guest Star | ||
| Norman Stanley | Guest Star | ||
| Barbara Leake | Guest Star | ||
| Barry Letts | Director |