...1... is the 2nd episode of Season 5 of Alias and the 90th episode overall. Sydney teams up with Renée - a fugitive on the CIA's most wanted list -- to track down Vaughn's murderer before the killer can strike again. Meanwhile, Jack enlists a reluctant new agent, Thomas Grace, and Weiss struggles to decide whether or not to accept a promotion that would force him to leave his friends and colleagues.