Explorers 4K 1985

Teenagers Ben and Wolfgang share a love of space and inventing. Driven by an unusual dream, they team up with a new friend to build a small spaceship out of parts found at a junkyard, controlled and protected by a force field. However, during their first flight, someone from outside suddenly takes control of the ship. As it turns out, our heroes aren’t the only ones in this universe who dream of making contact with other civilizations.