Returning to Atlantis in a puddle jumper after a resupply mission, John Sheppard is abducted and questioned by a group of nomadic space travelers who have no home planet and live perpetually aboard their spacecraft, traveling through the Pegasus galaxy. They have in their possession an Atlantean ship but have been unable to activate the hyperdrive. They've kidnapped Sheppard for his gene that they hope will allow them to use the ship to its full capacity. Sheppard isn't exactly a cooperative prisoner and soon shows them what can be done with the Ancients' technology. His efforts to send a signal to his own team however also alerts the Wraith to their presence and he must join forces with his captors if they are to survive.
—garykmcd