As the girls plan a surprise baby shower for Haley, the guys participate in try-outs for Jamie’s baseball team. Meanwhile, Brooke and Julian pursue adoption... while Mouth gets Millicent ready for her first day at work.
Murdoch and the gang are called to the scene of a grisly murder in the Don Valley, after a young man is found savagely beaten to death. The victim is Tom Meeks, a cadet at Fort York, who was on a rigorous training course that teaches guerrilla tactics. When another body is found with a ripped face to try and avoid identification, Murdoch investigates the military unit further and finds out some very disturbing underhand medical practices that the soldiers are unaware of.
Jim feels guilty when he is in a fight and he deflects a bullet, which hits a teen and causes life-threatening damage. Daphne's boyfriend Chris steals the serum from the Powells' house and injects his disabled father Roy, causing disastrous results creating a villain stronger then Jim. Joshua, The Watcher, proposes to Katie. JJ's math teacher tries to get him to join the school's academic decathlon team.
After JoJo suffers amnesia while undercover as a drug dealer’s girlfriend, the NISA gang must convince her alter-ego Vivian to help take the dealer down before he sells a dirty bomb to terrorists.
Leona faces both a personal and public crisis when Gail ends up in the hospital and Andy leads a movement to unseat her as Chief.
The brothers come across a lone baby elephant and bring him back to the Tortuga HQ for safety until they can find his mom.
Crosby pays the price for a mistake that will change his relationships with those closest to him. Adam gets annoyed with Alex's frequent visits. Meanwhile, Adam and Kristina are then forced to deal with a huge problem that will affect Max's progress. Elsewhere, Drew is hit with some disappointing news from his father, while Sydney makes a decision that her parents, Julia and Joel, are supportive of
Diane represents ballistics expert Kurt McVeigh in a lawsuit; Eli takes an interest in Wendy Scott-Carr's illegal nanny.
After Sharko rescues Marina trapped in Zig's swimming pool, they find his lair.
The Cape, Max, and Rollo are forced to rely on Dana's legal connections to help them discover The Lich's whereabouts. Heavily entranced by Conrad Chandler's (The Lich) potent serum, Orwell struggles to fight off the physiological and mental effects of the strong dose. Meanwhile, Netta's strange loyalty to The Lich is clarified. In a sedated, weak state, Orwell drifts between reality and fantasy sequences, which slowly reveal her history and past.
Big Time Rush and the Palm Woods kids get to hang out at Griffin's beach house for the day. Carlos and Logan hunt for buried treasure, James falls for a pretty girl who he suspects is a mermaid and Kendall and Jo's relationship hits the skids.
A global cataclysm, caused by a fatal accident in Geneva (Switzerland) during the implementation of the particle accelerator will lead to the crew and students of the school-ship Polar Star to live the greatest adventure of their lives. Isolated and aware that we only have each other, the ship will become their only home.
When Chris and Martin locate an amazing water-walking Basilisk lizard in Costa Rica, they try to replicate its actions in order to learn how this rare lizard is able to walk on water.
The class goes on a camping trip in the Canadian woods where Abbud sees an axe-wielding figure and tries to explain his feelings to Tea.
Finn and Jake get sucked into one of BMO's games and they have to defeat all three of his bosses.
Mordecai and Rigby look for help when their awesome house party turns lame.