When Arkasha's mother suddenly disappears, his dad acts strangely, and his worries grow. After seeing the secret code “WTYM,” he becomes convinced it means "We Took Your Mum." With his friend Lina, the sensitive eight-year-old begins a bold investigation, following clues and sneaking into unfamiliar places to “rescue” his mom. But the closer he gets to the truth, the more he must face a difficult kind of goodbye.