An impromptu birthday party for Alex goes awry when a birthday card contains a hazardous substance.

A nemesis threatens to kill Alex and the team mobilizes to protect her.

After Burt is returned to N.I.S.A. after six months imprisonment by the Dutch for spying on them, his actions arouse suspicion that he might be a double agent.

N.I.S.A. finally catches Claude's ex-partner and nemesis, but was the capture too easy?

The N.I.S.A. team finally gets a night off to relax at a party hosted by the Minister of Fisheries, but some terrorists mistake the Minister for someone else and take everyone hostage.

JoJo goes undercover in a gang to find details on a plot to kill the Queen. Things get complicated when she gets amnesia.

N.I.S.A. suspects a local doctor is passing nuclear secrets to North Korea and they devise an elaborate plan to get proof.

Peter and Alex spend an evening drinking at a club and end up losing a briefcase with important N.I.S.A. files.

N'udu's old partner in the Ligerian secret service is placed in a N.I.S.A. safe house, but a heretofore unknown sleeper agent threatens his life.

N.I.S.A. investigates the terrorist group "Ottawa 8", which leads them to a nursing home where Alex's gran lives.

The N.I.S.A. team stakeout Victor Laslov, who is suspected of planning to see the plans to a secret Canadian super submarine.

After Alex is abducted at the end of a mission, the rest of the team searches for her while she undergoes torture from the "doctor."