An American scientist publicly defects to East Germany as part of a cloak and dagger mission to find the solution for a formula resin and then figuring out a plan to escape back to the West.

Farmer: [describing Armstrong's contact] You'll recognise him. He has red hair which is not his own, and his name is Hugo. But don't give him that money until after you've landed.
Professor Gustav Lindt: I forbid you to leave this room!
[last lines]
Dr. Sarah Louise Sherman: Oh, Michael!
[laughing]
[first lines]
Professor Karl Manfred: Are they ever going to get the heating fixed?
Norwegian crewman: They are working at it, Professor. Perhaps some of you scientists would like to give us a helping hand!