It’s the second half of the season finale for the “all-star” edition of this dance competition, when the winner of the mirrorball trophy is announced. The final three couples are: Shawn Johnson and Derek Hough, Melissa Rycroft and Tony Dovolani, and Kelly Monaco and Val Chmerkovskiy. Who will win? 9 p.m. Tuesday on ABC.

“NCIS,” 8 p.m. (CBS): As the team searches for an abducted teenager, Abby and Ziva work closely with a friend of the girl who witnessed the kidnapping; Gibbs turns to a former contact for help; Tony is jealous when Ziva makes plans with another man.

“Emily Owens, M.D.,” 9 p.m. (CW): When Emily and Tyra discover that an infant has a condition, the parents are forced to make a difficult decision; a religious patient’s faith is shaken; Micah is upset when Will breaks protocol.

“Mankind: The Story of All of Us,” 9 p.m. (History): Genghis Khan creates a mighty empire; the Plague wreaks havoc; gold from Africa; guns in China.

“Rizzoli & Isles,” 9 p.m. (TNT): Jane and the team try to find the contamination source after a man dies from poisoning; Stanley’s true feelings are revealed; Tommy and Lydia disagree about custody of their baby; Detective Korsak reunites with his ex-wife.

“The Mindy Project,” 9:30 p.m. (Fox): Mindy is put in a tough position when a teenage neighbor asks her for birth control; Danny receives a complaint about Morgan.

“Parenthood,” 10:01 p.m. (NBC): Julia struggles with her new role as a stay-at-home mom; a disruptive neighbor threatens the future of the Luncheonette; Mark and Sarah can’t agree on relationship and parenting issues.

The New York Times