Last spring, ABC experimented with the short-run series model that's so popular abroad (think the Israeli show Prisoner of War, which beget Homeland here), ordering up a ten-episode, single-season run of the Taken knock-off Missing, starring Ashley Judd in the Liam Neeson role of a vengeful parent searching for a kidnapped kid. Although the series was constructed with a definite endpoint in mind, the finale carefully left room for another batch of episodes should the show prove to be a hit. It wasn't. But the network is giving the concept a second chance with Red Widow, another limited-run series that aired the first two of its eight hours tonight.