Ok, I've got a Hausgemacht Traveller Orbital 2100 scenario that we could get through in a night.
Works with two players, can accommodate a couple more.
Characters already pregenerated (and for Traveller hardcore players, yes, they survived character gen!)
Orbital 2100, for those not familiar with it, is a TL9 setting in the solar system before the discovery of Jump Technology or anti grav. An alternative universe in which the NASA Strategic Exploration Initiative was not nixed by Congress in 1989 and some of the promises of breaking out into the solar system have become true.
It begins with the crew of the CSV Memorial operating as a cargo hauler travelling to their home port of 243 Ida from Mars after dropping off various refined ores and returning with a hold of nitrogen salts and machinery. Then the crew encounters an old friend...