A 16-month-old previously healthy child with normal development presented with decreased level of consciousness, apneas, and seizure requiring intubation and treatment for status epilepticus. Investigations revealed no evidence of infection or trauma, normal head CT scan, and urine positive for tetrahydrocannabinol (THC) and negative for other substances. This report outlines the clinical presentation, approach to treatment, and potential seriousness of THC intoxication in young children. Mandatory reporting and monitoring of THC intoxication in children is recommended. The need for effective education of parents about the risks of unintentional THC poisoning and measures to safeguard young children is discussed.