Alias was an American "Spy-fi" television series created by J. J. Abrams. It was originally broadcast on ABC from September 30, 2001 to May 22, 2006, spanning five seasons. Jennifer Garner starred as Sydney Bristow, a CIA agent, who was usually seen wearing a colorful new disguise while undercover in some part of the world. A major plotline of the series was the search for and recovery of artifacts created by Milo Rambaldi, a fictional Leonardo da Vinci-like inventor and Nostradamus-like prophet from the Renaissance period. This plot and some technologies used in the series pushed Alias into the genre of science fiction.
The showing of this series was pretty spotty in my country so I've seen as many eps as I've been able - enough to be impressed beyond measure at Jennifer Garner's ability to transform herself week after week. Nice to know so many years later that they're still great friend's.