Alias Television Show. Sydney works for the CIA as a double agent going on SD-6 missions, but passes on this top secret information ...

Alias Television Show

Sydney Bristow was recruited as an undergrad to work for SD-6, which she thought was a government agency. However, when her fiancé is killed by SD-6 agents, she finds out that SD-6 are actually a counter-government agency.

Sydney then approaches the CIA and becomes a double agent, which means that she goes on SD-6 missions, but passes the information about her missions to her CIA handler, Vaughn, with whom she shares more than mutual admiration and information...

Sydney's father, Jack Bristow, is also an SD-6/CIA double agent. Both had a distant relationship for years, but their present situation brings them closer together. Sydney and her father spent the first season trying to keep these elaborate plans for a massive battery designed by a 16th-century philosopher/prophet from falling into wrong hands.

The number 47 is used repeatedly throughout this series. This number is also used repeatedly in Star Trek - The Next Generation (a.k.a. TNG) and its' spin-offs Deep Space Nine & Voyager. It is told that one of TNG's writers during college set up the theory that the number 47 is the most used number in the universe. On Alias, there are several references to 47, sometimes said out loud, sometimes seen on-screen and sometimes hidden (check every reference the NOTES section, preceded by Number 47.