After escaping illegal wildlife smuggling, giant cobra queen Celeste shelters in New York’s grimy downtown drainage system. On a storm‑swept night, she delivers a baby boy Leo for terrified pregnant Chloe, who flees out of horror. Abandoned by his birth mother, the infant calls Celeste “Mama”, tugging at her cold‑blooded snake instincts. Celeste chooses to raise the human baby against her species’ nature. Navigating threats from greedy aunt Penelope and ruthless exotic‑pet trafficker Sebastian, she overcomes shortages of supplies and constant exposure risks. With occasional kindness from marginal‑world strangers, the odd cross‑species mother‑son pair survives countless dangers. They escape the city and finally build a warm, peaceful new life in a small northern town, proving family can transcend species boundaries.