Moja is a five-month-old lion cub living with his single lioness mum, Nyota, in Kenya's Masai Mara. It is May, and food is scarce; Moja is starving. The rains have arrived, and prey is thin on the ground. Without the help and protection of a pride, Moja faces the toughest month of his life. Moja's mum, Nyota, is his only hope. She must find enough food to keep them both alive and protect Moja from the hyenas and lions that surround them. Together, they face a fight for life; this is their story.