After her favorite mare dies while giving birth on her grandfather's farm, Polly's spirits are lifted when she discovers that the foal is a magical baby unicorn. The secret spreads throughout the village, and troublemakers finagle to steal the unicorn for their own gains.

Arsenaal is a South African, Afrikaans-language thriller drama television series created, written and directed by Jan Scholtz and produced by his production company Scholtz Films which is set against the backdrop of investigative journalism, corrupt security companies and corrupt police.