Decent episode. The Cabal wants to starts a war with abnormal and humans by sending out a bio-agent that makes abnormal into killers. The team learns that the Cabal will release a major version of the bio-agent in three days so time is of the essence. James Watson, Helen's friend from The Five, comes to the team to help. He is actually Sherlock Holmes. John Druitt comes to help as well. The team examines the agent and see that there is no relative antidote except for their own source blood. They experiment on Bigfoot while Ashley and Henry make an attempt to sneak into Cabal's factory. Helen and the rest look for the source blood hidden by Helen's father, a location that another Five member, Ana Griffith will know. Decent episode all around. The rivalry with Sherlock and John was funny. The actress playing Claire Griffith was decent too. Poor Henry and Ashley you knew it was a bad plan to go after the Cabal. Problems gets worse for them because the bio-agent in Henry's regard will turn him into a full blown abnormal and finally kill him.
Episode ends in a cliffhanger with the source location. Not as much action specifically this was a character driven episode which was fun to watch.