Ejnar Mikkelsen was a real Danish polar explorer. The film accurately portrays his leadership of the Alabama Expedition and his arduous journey.

Iver Iversen was indeed the expedition's mechanic and accompanied Mikkelsen on the perilous sled journey. The film's portrayal of his resilience is consistent with historical accounts.

Charles Poulsen was a crew member on the ship. While the film depicts some internal conflict, the degree of skepticism and tension might be dramatized for cinematic effect.

Dr. Laub is based on the scientific minds that were on the expedition, and those that supported it. While there were scientific minds on the expedition, the character is somewhat of a composite, and therefore only partly historic.

Captain Holm was the captain of the ship, and responsible for the ship itself. The portrayal of his commands and leadership are consistent with historical accounts.

In the early 20th century, Denmark asserted sovereignty over Greenland, leading to expeditions to explore and map the territory.

The film is based on the real-life Alabama Expedition led by Ejnar Mikkelsen to recover the lost maps and diaries of Mylius-Erichsen.

Ejnar Mikkelsen and Iver Iversen did undertake a perilous journey across the Greenland ice cap to find proof that Peary Land was not an island.

The expedition did locate and map Danmark Fjord, providing valuable geographical information.

Their ship, the Alabama, was crushed by ice, forcing them to establish a makeshift camp and await rescue.

The film portrays the harsh conditions, including extreme cold, hunger, and encounters with polar bears, which aligns with Mikkelsen's accounts.

Iver Iversen suffered a severe leg injury during the expedition, hindering their progress and posing a threat to his life.

The film captures the psychological toll of isolation, hardship, and the constant threat of death in the Arctic environment.

Mikkelsen and Iversen were eventually rescued after being stranded for nearly two years, though the film alters some details of the rescue.

While the frequency and intensity of polar bear encounters might be heightened for dramatic effect, such threats were a real danger.

The film accurately portrays the vital role of sled dogs in Arctic exploration and survival.

The film captures Mikkelsen's unwavering commitment to his mission and his resilience in the face of adversity.

While the expedition did contribute to mapping Greenland, the film might overemphasize the immediate impact of their findings.

The crucial supply depot they relied on was buried under an avalanche, forcing them to survive with limited resources.