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You may wish to consult Flood (disambiguation) for other, similarly-named pages.

The Flood were a viral species which became trapped inside a glacier on their planet of Mars. The Flood needed a physical form to take on and could infect all biological life containing water.

Biology Edit

The Flood's natural state was in liquid water. It was capable of controlling the water, causing it to flow in unnatural directions. It was also capable of infecting other life forms by coming into contact with them, making them spasm and convulse as they were taken over, mainly because it was a viral life-form.

Once infected, the individual constantly exuded water, pouring from the body; hands and mouth. This could be increased to produce high-pressure sprays from both the hands and the mouth. The infected victims would no longer draw their oxygen from air, but from water and they would be near walking corpses, as the infection greatly weakened their heartbeats and pulse. Also, the infection would cause a lot of electrical activity in the host's brain. Upon mutation, infected victims could deactivate nearby cameras. When infected, the hosts would also develop cracked skin (especially around the mouth and neck) and blackened teeth, as well as an internal fission in the host's body that produced the water. Some hosts, though not all, could develop faded blue eyes. The Tenth Doctor suggested that this might mean they were closer to human than those with the faded blue eyes. These physical symptoms could be masked, meaning that the infection could hide inside a human host, and infect him or her at any moment.

The host also had the ability to survive on the surface of Mars. Hosts could also run extremely fast, even going as far as to keep up with a rocket-powered robot and outrun other running people. A single droplet of the viral water emitted by the host could pass on the infection to another host. Despite the considerable amount of water produced by the infection, the infected did not seem to be overly affected by electricity (which salty water conducts well); the infected Andy Stone was electrocuted by the Tenth Doctor, but was only momentarily incapacitated. However, the Flood creatures, being made almost entirely up of water and constantly producing it, could be destroyed by intensive heat. This weakness was shared with those who imprisoned them, the Ice Warriors. (TV: The Waters of Mars)

The Flood proved capable of coordinated action despite being scattered, as well as considerable intelligence. When infecting Ice Warriors, it could communicate verbally once infection manifested itself. (COMIC: The Wolves of Winter) Alternately, human victims could no longer speak English, but could emit gurgling growls and snarls and could seemingly only understand Ancient North Martian. All infected could also emit terrifying high-pitched screams that sounded like tortured metal, capable of cracking open ice, and communicating with other infected victims. Strangely, a victim's scream could be heard through the thickest of metals. (TV: The Waters of Mars)

HistoryEdit

Early historyEdit

At some point relative to the 9th century, a virus the Ice Warriors called the Flood spread across the planet. According to Grand Marshall Sskoll, many of the Ice Warriors fell before they managed to contain it and even then they had to sterilise the ground to remove all traces of the Flood. Ultimately, the Ice Warriors found that the only way to stop the spread was to encase it in a glacier in the Gusev Crater. However, while lowering the contaminated sand into the glacier, the Ice Warrior Haathi became infected and fled in a ship. Sskoll followed with his forces and managed to force the ship to crash-land on Earth on the island of Jan Meyen in the North Atlantic, knowing that if the Flood reached the sea, it would spell the doom of humanity.

A group of Vikings, the original Wolves of Fenric, found the crashed vessel, along with the Ice Warrior patrol sent to contain the virus as well as the Twelfth Doctor and Bill Potts. The Flood proceeded to take many of the Martian and human lives. The Doctor, who recognised the virus, worked with Sskoll and the Vikings in an effort to contain the Flood, though the Ice Warriors were impeded by the temperatures of a nearby volcano which also prevented the Flood from being frozen on Earth. The Doctor decided to have the Vikings and Ice Warriors ally to use the Ice Warriors' sonic weaponry, which could harm the Flood, to push it to the other side of the mountain where the Doctor could attempt to negotiate with the Flood.

Wearing space suits, the Doctor and Bill attempted to negotiate with the Flood, learning that it intended to spread across the planet. The Doctor offered to take the Flood to other worlds with huge oceans, but ones that were uninhabited, if it would leave Earth alone. However, the Flood refused this offer as there were not sentient hosts on those worlds. Though the Flood attempted to infect the Doctor and Bill, their spacesuits protected them from the attack.

After an encounter with possessed Vikings and a Haemovore, the Doctor realised that Fenric was in the Vikings treasure, still trapped in the Shadow Dimensions and that the Vikings were the ancestors of the people he met when he fought Fenric in his seventh incarnation. Having figured out the truth, the Doctor had Bill get the Ice Warriors to leave but create a distraction along the way while the Doctor snuck past Fenric and the Flood to meet with a Haemovore. The Doctor revealed to the creature that Fenric intended to replace the Haemovores with the Flood by infecting the world's water supply with the virus rather than the chemical slime that created the future the Haemovores came from, which would effectively wipe them from existence. The Haemovore agreed to an alliance with the Doctor for mutual benefit and used the weapon Hafdan stole from the Ice Warriors to set off the volcano as everyone else fled the island. The eruption destroyed the Flood strain on Earth while the surviving Vikings, Haemovores, the Doctor and Bill fled. (COMIC: The Wolves of Winter)

The destruction of the Flood on Earth left the last remaining strain still trapped in the glacier. In 2058 and 2059, the human colony Bowie Base One used the glacier as a water source. (TV: The Waters of Mars)

Reemergence and destructionEdit

Original timelineEdit

On 21 November 2059, the Flood, thanks to a broken filter, managed to infect Andy Stone when he ate a carrot he had washed with water from the glacier. The Flood proceeded to overrun Bowie Base One which eventually led to Captain Adelaide Brooke initiating Action Five. The resulting nuclear detonation destroyed Bowie Base One, the surviving crew, the infected personnel and the Flood.

Many on Earth mourned the crew's death but remained unaware of why Adelaide had destroyed Bowie Base One. (TV: The Waters of Mars)

New timelineEdit

In the altered timeline, the Tenth Doctor visited Bowie Base One at the same time that the Flood infected Andy Stone thanks to a broken filter. Reluctantly aided by the Doctor, the crew attempted to battle the Flood. The Flood learned of the abundance of water on Earth through the infected Margaret Cain and expressed a desire to reach Earth in order to spread. As the situation worsened, the Flood-infected Margaret, Andy, Steffi Ehrlich, Roman Groom and Tarak Ital started shattering the ice holding the rest of the Flood in order to release it.

Though the Doctor originally refused to help as the destruction of Bowie Base One was a fixed point in time, he declared himself the Time Lord Victorious and attempted to save Adelaide, Mia Bennett and Yuri Kerenski. With the help of Gadget, the Doctor managed to transport the survivors to safety in his TARDIS. Before departure, Adelaide initiated Action Five which activated a nuclear device under Bowie Base One. The resulting nuclear blast destroyed Bowie Base One, the infected crewmembers and the Flood.

Following Adelaide's suicide on Earth to correct the timeline, Mia and Yuri spread the story of the Flood infection of Bowie Base One and Adelaide's heroic actions to stop them. This inspired Susie Fontana Brooke to lead humanity into the stars. (TV: The Waters of Mars)

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