When an unidentified enemy vessel attacks Enterprise, Archer orders the ship's return to Jupiter Station for weapon upgrades. But, Reed, Tucker, and the crew work frantically to get their new phase cannons operational to meet this new threat. Meanwhile, Archer realizes no one knows Reed well enough to give him a personalized birthday gift. So, he orders Sato to investigate Reed's favorite food. 

When Enterprise comes across a disabled Klingon vessel, Archer dispatches a shuttlepod with T'Pol, Hoshi, and Reed to investigate. There, a hostile female Klingon ambushes them and hijacks the shuttlepod, leaving the Enterprise crewmembers dangerously stranded aboard the Klingon vessel. Now it's up to Archer to take the Klingon under guard and enlist her help rescuing his crew.