LOS ANGELES (thefutoncritic.com) -- ABC isn't giving up on "Alias" quite yet.

The network is expected to formally announce tomorrow plans to move the series to Wednesdays at 10:00/9:00c following "Lost" beginning December 7. The two-week stunt will mark the show's final broadcasts before returning for the latter half of its fifth season sometime in the spring.

A description for the show's winter finale ("The Horizon") has already been released (includes major spoilers, highlight to read): "Sydney is reunited with Vaughn after being kidnapped and put in a hypnotic state in order to retrieve information from the depths of her mind. But unbeknownst to Sydney, her captor is a familiar face with a vested interest in Sydney's future and the future of her unborn child, on "Alias," WEDNESDAY, DECEMBER 14 (10:00-11:00 p.m., ET), on the ABC Television Network."

As for "Alias's" current Thursday, 8:00/7:00c home, movies and other specials will fill the slot beginning next week with "Dancing With the Stars" taking over on January 5.

"Invasion," the current Wednesday, 10:00/9:00c time period holder, will return on December 21.

ABC however hasn't firmed up if the December 7 or December 14 broadcasts of "Lost" will be originals or repeats.

Either way the added exposure should help the series, which is currently averaging 7.09 million viewers on Thursday nights. Last season, "Alias" averaged 10.27 million viewers in the post-"Lost" time period.