Lion researcher Dr. Philip Stander has studied and tracked a small population of desert lions for nearly two decades in Africa's merciless, desolate Namib. With local villagers, poachers, and hunters threatening their survival, the key to the their future hinges on a brotherhood of youngsters known as the "Five Musketeers." Witness their epic journey to adulthood, as they endure unexpected challenges, harsh conditions, and crushing losses on their difficult voyage from cubs to kings.