Samy Osman

When the team is called to investigate gun shots in a fancy neighborhood, they are confronted with a group of dangerous gunrunners, one whom happens to be Ed's brother.

Birkhoff tells Nikita that Sonya (recurring guest star LYNDIE GREENWOOD) is Amanda's mole and not only has Amanda reactivated Sonya's kill chip but she also placed a second mole in Division to keep an eye on her. Nikita, Michael and Ryan devise a plan to use Sonya to ferret out Amanda's hiding place and Birkhoff sets a trap for the second mole. Meanwhile, Michael confronts Alex about her drug use and she begs him not to tell Nikita.

Nikita and Michael capture Cyrus (guest star ISAIAH MUSTAFA – Chuck), an arms dealer, who is purchasing a weapon-jamming device for Ari (recurring guest star PETER OUTERBRIDGE). Nikita convinces Ryan to let them use Cyrus as bait to capture Amanda, but Cyrus manages to escape the trap. However, when Amanda double-crosses Cyrus, his only hope for survival is Nikita. Meanwhile, Birkhoff is hot on the trail of Amanda's mole and Alex starts to unravel.

In order to gain control of the black box, Amanda makes plans to kidnap Ari's (recurring guest star PETER OUTERBRIDGE) son, Stefan(guest star DYLAN MINNETTE – Saving Grace, Awake) to use him as leverage. Still in Division's protective custody, Ari begs Nikita for help. However, Stefan's bodyguard, Krieg (guest star ANDREW DIVOFF – Lost) manages to capture both Nikita and Amanda and the two must work together to escape. Owen is furious with Michael after Michael assigns Alex to be Nikita's backup instead of him.

Sophia Bush and Jason Isaacs star in a drama about Dr. Sam Griffith, a gifted heart surgeon who excels in her new leadership role as chief of surgery after her renowned boss, Dr. Rob "Griff" Griffith, falls into a coma.