When does Nikita return?

The series is an adaptation of Luc Besson's French film La Femme Nikita. The main cast in various seasons features Q, Lyndsy Fonseca, Shane West, Aaron Stanford, Melinda Clarke, Xander Berkeley, Noah Bean, Tiffany Hines, Ashton Holmes, Dillon Casey, and Devon Sawa. The series focuses on Nikita Mears, a woman who escaped from a secret U.S. government-funded organization known as Division.