In the third season premiere, Ryan takes charge of Division with Nikita by his side. Their first mission under the new regime is to bring in " The Dirty Thirty, the rogue agents who failed to respond to the Division recall after Percy was killed. Unfortunately, their first mission doesn't go as planned & Michael is arrested, forcing Nikita to change gears & hatch an escape plan for him. Alex reprises her alter ego, the spoiled Russian princess Alexandra Udinov, in a very unique way as part of the plan to spring Michael. Meanwhile, Birkhoff struggles to maintain a working relationship with Sonya (recurring guest star LYNDIE GREENWOOD -- Rookie Blue), despite his growing attraction to her.