Ragnar’s fleet is shipwrecked and washes up on the Wessex coast, but without enough survivors to form a credible force, Ragnar and Ivar have a difficult decision to make. Rollo…

Lagertha attempts to fulfill a long-held ambition. Ragnar negotiates an unexpected concession from King Ecbert.

Ragnar and Ivar plot against the Saxons and reach a new level of understanding.

The labors of the Vikings eventually bear fruit as, within sight of Paris, they re-launch their boats but this time along with some interesting structures that Floki has built. Aethelwulf…

A ferocious battle between the Vikings and the French eventually comes down to Ragnar against Rollo. The outcome will seal the fate of the two brothers.

Ragnar returns to Kattegat and formulates a plan to head back to Wessex, where he intends to right past wrongs.. Meanwhile, Lagertha plans a power play in Kattegat and Bjorn…

The Kattegat locals chide Ragnar that the gods have deserted him as he struggles to crew his voyage to Wessex. It’s Bjorn who has charisma now as he prepares to…

Ragnar declares another raid on Paris at the Thing in Kattegat. Ecbert also has a journey in mind as he dispatches Aethelwulf and Alfred on a pilgrimage to Rome.

In England, King Ecbert’s true ambitions are revealed as he plots to gain the crown of Mercia while outside Paris. The Vikings attack Paris with considerable force, but will Rollo’s…

Defeat for the Vikings calls Ragnar’s leadership into question as they evacuate their camp and move back down river. Ragnar remains inscrutable until he orders the fleet to beach at…

There’s an air of betrayal as those whom Odo trusts plot against him. Ecbert agrees to support Kwenthrith in Mercia. Pregnancy brings happiness to Lagertha and Kalf and a marriage…

A dangerously ill Ragnar returns to Kattegat, where his suspected death kicks off a scramble to succeed him. Meanwhile, Lagertha engages in a power struggle with her calculating, former second…

As Ragnar and Floki remain at odds, Rollo makes great efforts in Paris to win over his new bride, Princess Gisla. Meanwhile, King Ecbert sets the task for his son…

Floki learns of the heavy price he has paid for his actions. Rollo finds an unlikely ally in Count Odo. Bjorn has to fight a fierce opponent in the wilderness.

King Aelle goes to Wessex for Christmas and is not impressed with how family relations are developing. Rollo’s future hangs in the balance.

With the deadly virus spreading throughout the city, the search for the antidote continues, as Fish Mooney, The Riddler and Penguin reveal plans of their own. Bruce meets Ra’s al…

With the deadly virus spreading throughout the city, the search for the antidote continues, as Fish Mooney, The Riddler and Penguin reveal plans of their own. Bruce meets Ra’s al…

Gordon races against the clock to save the city from the Alice Tetch Virus, when Lee Thompkins intercepts with a plan of her own. Also, Alfred sees a big change…

Temple Shaman takes Bruce to the next phase of his training; Gordon and Bullock discover a crystal owl that carries the biggest secrets of Gotham’s underworld; Nygma and Penguin must…

As the FBI copes with a tragedy, Weller finds himself at the center of a surprising event. Jane faces an uncertain future.

Three weeks after they crash land on a deserted island, tensions run high for Team Scorpion when they must battle to overcome their relationship obstacles with each other in order…

Gordon tracks down the weapon the Court of Owls intend to use for the destruction of Gotham; Kathryn and Temple Shaman tell Bruce about their next move; Ivy offers Selina…

The team finally cracks a member of Sandstorm, leading to a huge breakthrough in uncovering Phase Two.

While en route to Toby and Happy’s honeymoon, Team Scorpion’s plane crash lands on a remote deserted island, leaving them all with little hope for rescue.

Some of Gotham’s most unhinged villains band together, while The Riddler continues his conquest of the city. Gordon is on a search for answers and all roads keep leading him…

Zapata’s transgressions catch up to her, sending her to jail alongside a potentially powerful Sandstorm asset named Devon. Weller and the team must go to exceptional lengths to help Zapata…

Team Scorpion help Toby and Happy race to the altar to say “I Do” after a simple job extinguishing a tunnel fire becomes catastrophic.

The Court of Owls devises a new plan regarding the future of Gotham, as Gordon uncovers information about his father and uncle’s past, connecting him back to the organization. Meanwhile,…

Jane and Weller go undercover on a high-stakes scavenger hunt run by powerful hackers. Shepherd journeys to Thailand to procure a dangerous weapon.

Nygma convinces himself that he doesn’t need Penguin to succeed and begins to introduce himself to Gotham as “The Riddler.” Bullock and Lucius Fox get caught up in Nygma’s mind…

Team Scorpion gets trapped inside a failing and dangerous biodome designed for Mars while trying to extract a pair of scientists inside.

Team Scorpion must defy the orders of a foreign government after they retrieve an asteroid from space containing DNA strands that could have deadly consequences once exposed.

Under investigation by an old rival, the team struggles to defend itself. Meanwhile, a tattoo leads them to a mysterious death at a foster home

Jane and her new flame Oliver find themselves in a dangerous situation that exposes the secrets they’ve both been keeping. Uncertain if they can trust each other, the couple must…

With Nas’s help, Weller and Jane finally come face-to-face with Nas’s inside source within Sandstorm, and square off with an old foe.

While on a mission to repair a turbine at a wind farm, Team Scorpion must race to save Paige and Happy before the cable holding the gondola they are in…

To stop a dangerous virus from spreading, Team Scorpion must locate a rare endangered monkey in the Amazon that has the antibody for the cure. Also, Toby and Happy see…

Following a severe storm, Happy’s friend Ada, who lives in a sterile bubble to protect her compromised immune system, is left with dangerous debris on the verge of puncturing the…

After a set of tattoos produces multiple leads, the team divides into unlikely pairings to chase down a deadly underworld courier.

When a simple mission to protect a vital seed bank goes awry, Team Scorpion must save Happy, Sylvester and Cabe, who begin suffering from life-threatening, fear-based hallucinations.