Episode 41 of "Dark Angel"
s02e19 She Ain't Heavy
Title: She Ain't Heavy
Original Air Date: 04/19/2002 on Fox
Director: Allan Kroeker
Writer: Michael Angeli, Robert Doherty
Guest Stars: Malcolm Stewart (Dir. Paul Simms), Jase-Anthony Griffith (Operative 2), Darcy Laurie (Dix), Fred Ewanuick (Luke), Jim Thorburn (Steve), Brian Jensen (Mole), Evan Stewart (Anchorman), Jessica Alba (Sam/X-5-453), Cameron Bright (Johnny), Sky Miles (Sky)
Plot Outline:
Max's life is placed in more danger than ever before when she is hunted by the one person who knows her better than anyone -- her clone. Though even the existence of this exact replica is news to Max, she quickly realizes the imminent danger from an individual who can get inside her head and infiltrate her life like no one else. Dealing not only with this new threat but also the disintegration of her relationship with Logan and Joshua's disillusionment over not being able to go out in public, Max must race against time to figure out how to stop this deadly enemy before it's too late.