"Alias" (8 p.m., ABC): After an unbearably long hiatus, Jennifer Garner's spy thriller "Alias"

"Alias" (8 p.m., ABC): After an unbearably long hiatus, Jennifer Garner's spy thriller "Alias" resumes the march toward its series finale. This episode provides fans with an action-packed two-hour bonanza that features the return of Vaughn and the birth of Sydney's baby.
"Celebrity Cooking Showdown" (8 p.m., NBC): Celebrity participants include actor Tom Arnold, singer Big Kenny and Miss USA Chelsea Cooley.
"Heist" (9 p.m., NBC): Lola, Ricky and James break into Sam Gordon's security office to gather information on the three Rodeo Drive jewelry stores they plan to target.
"The Amazing Race" (8 p.m., CBS): Lola, Ricky and James break into Sam Gordon's security office to gather information on the three Rodeo Drive jewelry stores they plan to target.