Expo 2068

In Quebec, Canada,[1] a nuclear reactor is being shipped to the Manicougan Power Complex by transporter truck. Captain Black (voiced by Donald Gray) switches a road sign to divert the driver onto an unfinished bridge, sending the transporter crashing into a canyon. The Mysterons (voiced by Donald Gray) reconstruct the driver, the transporter and the reactor as part of a plan to damage Earth's prestige by devastating the Atlantic Seaboard of North America.

Elsewhere, a fleet of remote-controlled Seneca helicopters is ferrying construction materials to the future site of the Expo 2068 world's fair. Infiltrating the Seneca control tower, Black holds the helicopter operator at gunpoint, forcing him to divert one of the helicopters to a forest clearing. There, the transporter driver loads the reactor into the helicopter's wooden holding crate. While transferring the reactor he is discovered by a passing lumberjack, whom he shoots and leaves for dead.

While chasing the transporter in a Spectrum Pursuit Vehicle, Captains Scarlet and Blue (voiced by Francis Matthews and Ed Bishop) come across the wounded lumberjack and have him taken to hospital. They discover that the reactor's thermal safety valve has been removed and that without it, the reactor will overheat and explode. They resume their pursuit and the transporter driver, desperate to evade Spectrum, is killed when he crashes his vehicle. With the reactor nowhere to be found, Scarlet and Blue remember that the lumberjack kept muttering the word "Seneca", and speed to the Expo 2068 site.

At the site, Black instructs the operator to position the helicopter directly over the Expo tower. When Scarlet and Blue arrive, Black orders the operator crash the helicopter, but the operator refuses. Black shoots him, also hitting the controls and disrupting the helicopter's flight pattern. Wearing a jet pack, Scarlet flies up to the helicopter with a saw and cuts his way into the holding crate, where he finds that the reactor has reached critical temperature. He is crushed by the reactor but succeeds in stabilising it by disconnecting the external circuits; however, he is killed shortly after when the helicopter crashes into a building and explodes. In the final scene, Blue flies Scarlet's body back to Cloudbase.

"Expo 2068" was filmed between October and November 1967 on Century 21 Studios' Stage 4. It was the last episode of Captain Scarlet to be shot on that stage; the next production to go before the Stage 4 unit was "The Most Special Agent", the first episode of Joe 90.[1]

The script included several scenes that were shortened or removed to prevent the episode from over-running.[1] One of the deleted scenes shows Scarlet and Blue obtaining their SPV (which is stated to be number 442) from a village shop whose owner is shown dressed in nightclothes and a baseball cap.[2][3] Two expository scenes – one explaining the purpose of the nuclear reactor, the other the history of the Manicougan Power Complex – were also removed, and some of Blue's dialogue in the final scene was cut.[1]

The script also clarified the Mysterons' objectives, with Colonel White (voiced by Donald Gray) realising that they intend to carry out their threat to lower Earth's prestige by crashing the reactor into Expo 2068, causing a nuclear explosion.[1][2] This line of dialogue was cut, with the result that in the finished episode the target is implied to be the Manicougan Power Complex.[1][2][3] According to the script, Expo 2068 is "equivalent to our World's Fair but on an enormous scale".[1]

The transporter model and the reactor prop both previously appeared in "Big Ben Strikes Again".[4]

The incidental music for "Expo 2068" was the last to be produced for the series. It was recorded during a four-hour studio session held on 3 December 1967, where it was performed by an ensemble of 14 instrumentalists. Music for "Attack on Cloudbase" had been recorded earlier in the session.[1][5] The Captain Scarlet music CD release includes a track from "Expo 2068" titled "The Reactor".[6][7][8]

Shane M. Dallmann of Video Watchdog magazine calls "Expo 2068" a "standout episode – and not just from a dramatic standpoint". Though unimpressed with the miniature model of the Seneca helicopter's crate, he comments that the scene of Scarlet sawing his way inside "reveals an amazing level of concentration, skill and dexterity behind the camera."[9]

Andrew Pixley and Julie Rogers of Starburst magazine consider the scene of Scarlet being crushed by the reactor to be one of the series' more violent moments.[10]

• "Expo 2068" on IMDb
• "Expo 2068" at TV.com
• "Expo 2068" at TheVervoid.com