In the hot tropical forests of the Western Ghats in Southern India, a king cobra's reputation as a cold-blooded killer is well-earned. But Nagaina also has a maternal side. It's the end of March and she's about to lay her eggs in a waterproof nest. She'll then sit and guard them for three months until they hatch. By then, her hunger will be overwhelming, and she'll be faced with a gruesome choice: be patient and allow her offspring to grow, or succumb to her cannibalistic urges?