Over the course of ten days and 435 miles, an unbreakable bond is forged between pro adventure racer Michael Light and a scrappy street dog companion dubbed Arthur. As the team is pushed to their outer limits of endurance in the race, Arthur redefines what victory, loyalty and friendship truly mean.

• Sierra/Affinity
• Entertainment One
• Mark Wahlberg
• Nathalie Emmanuel
• Simu Liu
• Ali Suliman
• Juliet Rylance
• Bear Grylls
• Michael Landes
• Paul Guilfoyle