Ep 3. Knightfall

In Nikita season 2 episode 3, titled "Knightfall," Nikita and Michael team up to try and take down a terrorist group known as the Invisible Hand. The group is responsible for an attack on an international arm dealers conference, and Nikita and Michael believe they have found the location of the Invisible Hand's headquarters.

Alex, still reeling from the revelation that her father was a member of the terrorist group Division, decides to take matters into her own hands. She sets up a meeting with the Invisible Hand's leader, a man named Marcus, posing as a member of Division. Alex's plan is to get close to Marcus and gather information that could help Nikita and Michael in their mission.

Nikita and Michael infiltrate the Invisible Hand's headquarters, and after a few close calls, they manage to plant a tracking device on one of the group's leaders. With the information from the tracker, they discover that the Invisible Hand plans to attack a charity gala hosted by billionaire businessman Phil Mars. Nikita and Michael rush to the event to stop the attack.

Meanwhile, Alex's meeting with Marcus doesn't go as planned. Marcus is suspicious of her, and Alex is forced to reveal her true identity. Marcus takes her hostage, and Alex is left with no choice but to call Nikita for help.

At the charity gala, Nikita and Michael spot the Invisible Hand's operatives and prepare to take them out. In the chaos of the attack, Nikita is confronted by one of the group's leaders, a woman named Anne, who she believed was dead. Anne reveals that she faked her own death and joined the Invisible Hand to seek revenge on Nikita for destroying her life.

Nikita manages to defeat Anne, and the attack on the charity gala is neutralized. Alex, who was rescued by Nikita and Michael, decides to leave Division and join their mission full-time.

"Knightfall" is a thrilling episode that showcases Nikita and Michael's skills as operatives and explores the complicated relationships between the show's characters. The episode also sets up new storylines and conflicts that are sure to keep viewers on the edge of their seats throughout the rest of the season.