Sheppard, McKay, Teyla, Ronan and Jennifer Keller travel to a rendezvous with Todd the Wraith. Keller believes she has found a vaccine of sorts to modify the Wraith at a genetic level that will render it unnecessary for them to feed on humans. She needs test subjects however and Todd agrees but indicates that they will have to seek the support of the Queen of an allied Wraith hive. Since his own Queen has been killed, it will be necessary for someone to impersonate her - and the only person able to get away with that would be Teyla. She agrees but once on board the allied ship, it's very clear that Todd hasn't been entirely forthcoming as to his exact plan.