A small Talarian craft found adrift with a radiation leak in 2367, carrying five teenage crew, one of whom turns out to be Jeremiah Rossa, a human boy raised as the Talarian Jono.
The Talarian observation craft appears in the fourth-season Star Trek: The Next Generation episode Suddenly Human. In 2367 the Enterprise-D answers its distress call and finds the little ship drifting with a failed propulsion system and radiation leaking through the cabin.
The away team finds five young crew members suffering from radiation burns. The vessel was being used for training, a common Talarian practice. Four of the boys are Talarian, but Dr Crusher finds that the fifth, Jono, is human: he is Jeremiah Rossa, grandson of a Starfleet admiral, taken in by the Talarian captain Endar after his parents died in an attack on Galen IV.
Endar arrives in the warship Q'Maire to collect the boys, and the question of where Jono belongs brings the two sides close to a fight.