The Invaders, alien beings from a dying planet. Their destination: the Earth. Their purpose: to make it their world. David Vincent has seen them, for him it began one lost night on a lonely country road, looking for a shortcut that he never found. It began with a closed deserted diner, and a man too long without sleep to continue his journey. It began with the landing of a craft from another galaxy. Now, David Vincent knows that the Invaders are here, that they have taken human form. Somehow he must convince a disbelieving world that the nightmare has already begun.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Beachhead | 1967-01-10 | 60 min |
| Season 1 | Episode 2 | The Experiment | 1967-01-17 | 60 min |
| Season 1 | Episode 3 | The Mutation | 1967-01-24 | 60 min |
| Season 1 | Episode 4 | The Leeches | 1967-01-31 | 60 min |
| Season 1 | Episode 5 | Genesis | 1967-02-07 | 60 min |
| Season 1 | Episode 6 | Vikor | 1967-02-14 | 60 min |
| Season 1 | Episode 7 | Nightmare | 1967-02-21 | 60 min |
| Season 1 | Episode 8 | Doomsday Minus One | 1967-02-28 | 60 min |
| Season 1 | Episode 9 | Quantity: Unknown | 1967-03-07 | 60 min |
| Season 1 | Episode 10 | The Innocent | 1967-03-14 | 60 min |
| Season 1 | Episode 11 | The Ivy Curtain | 1967-03-21 | 60 min |
| Season 1 | Episode 12 | The Betrayed | 1967-03-28 | 60 min |
| Season 1 | Episode 13 | Storm | 1967-04-04 | 60 min |
| Season 1 | Episode 14 | Panic | 1967-04-11 | 60 min |
| Season 1 | Episode 15 | Moonshot | 1967-04-18 | 60 min |
| Season 1 | Episode 16 | Wall of Crystal | 1967-05-02 | 60 min |
| Season 1 | Episode 17 | The Condemned | 1967-05-09 | 60 min |
| Season 2 | Episode 1 | Condition: Red | 1967-09-05 | 60 min |
| Season 2 | Episode 2 | The Saucer | 1967-09-12 | 60 min |
| Season 2 | Episode 3 | The Watchers | 1967-09-19 | 60 min |
| Season 2 | Episode 4 | Valley of the Shadow | 1967-09-26 | 60 min |
| Season 2 | Episode 5 | The Enemy | 1967-10-03 | 60 min |
| Season 2 | Episode 6 | The Trial | 1967-10-10 | 60 min |
| Season 2 | Episode 7 | The Spores | 1967-10-17 | 60 min |
| Season 2 | Episode 8 | Dark Outpost | 1967-10-24 | 60 min |
| Season 2 | Episode 9 | Summit Meeting (1) | 1967-10-31 | 60 min |
| Season 2 | Episode 10 | Summit Meeting (2) | 1967-11-07 | 60 min |
| Season 2 | Episode 11 | The Prophet | 1967-11-14 | 60 min |
| Season 2 | Episode 12 | Labyrinth | 1967-11-21 | 60 min |
| Season 2 | Episode 13 | The Captive | 1967-11-28 | 60 min |
| Season 2 | Episode 14 | The Believers | 1967-12-05 | 60 min |
| Season 2 | Episode 15 | The Ransom | 1967-12-12 | 60 min |
| Season 2 | Episode 16 | Task Force | 1967-12-26 | 60 min |
| Season 2 | Episode 17 | The Possessed | 1968-01-02 | 60 min |
| Season 2 | Episode 18 | Counter-attack | 1968-01-09 | 60 min |
| Season 2 | Episode 19 | The Pit | 1968-01-16 | 60 min |
| Season 2 | Episode 20 | The Organization | 1968-01-30 | 60 min |
| Season 2 | Episode 21 | The Peacemaker | 1968-02-06 | 60 min |
| Season 2 | Episode 22 | The Vise | 1968-02-20 | 60 min |
| Season 2 | Episode 23 | The Miracle | 1968-02-27 | 60 min |
| Season 2 | Episode 24 | The Life Seekers | 1968-03-05 | 60 min |
| Season 2 | Episode 25 | The Pursued | 1968-03-19 | 60 min |
| Season 2 | Episode 26 | Inquisition | 1968-03-26 | 60 min |
