The starship Marco Polo is on route on a routine mission to the planet Rossum. While the crew of five is in hibernation, strange things begin to happen. A sort of outline of a human being moves around on the monitors in the control room and puts the cameras out of commission. This could only mean one thing, a stowaway. The crew discovers they are not alone, even though the computer only registers five people on board.
| Name | Type | Role | |
|---|---|---|---|
| Tor Åge Bringsværd | Writer | ||
| Jon Bing | Writer | ||
| Stein-Roger Bull | Director |