they do not achieve the second objective, as the primary systems of the craft are severely damaged, although in some episodes (including "the flight plan") burton implies that only a lack of fuel prevents the ship lifting off. the secondary systems are insufficient to enable them to achieve the sub-orbital flight required. they are unable to use giant technology, as it is bulky and less advanced; in one episode an experimental nuclear reactor, provided by an engineering student, produces dangerous side effects and is prone to overloading. they also cannot trust the giants, who in another episode ("target: earth") offer the little people a ride home in exchange for technical assistance with their space program, but then double-cross them.