Alias - Season 1 Episode 2 -

Now working as a double agent for both the CIA and the evil SD-6, Sydney meets her CIA handler, Michael Vaughn, who instructs her on her missions, while her father, Jack, also gives her words of wisdom on the inside of SD-6. In her next mission, Sloan sends Sydney and Marcus out to find clues to a missing nuclear bomb hidden somewhere, in which a member of the Russian Mafia knows the secret. Meanwhile, Will continues to grow obsessed with Danny's murder and begins his own investigation behind Sydney's back who told him to leave the matter alone.