they’re bounty hunters tracking witches. They face an evil grand witch planning to sacrifice kids

Fifteen years after a horrific experience in a deceptively inviting ginger bread house, an orphan Hansel (Jeremy Renner) and Gretel (Gemma Arterton) have become famous for ridding the countryside of witches. Despite their stellar success record, the brother and sister face a unique challenge when an extremely powerful witch is identified as the culprit stealing children from a local village with the intent to sacrifice them in an ancient magical ceremony to be held on the night of the Blood Moon. As Hansel and Gretel race against the clock, making several unlikely allies on the way (among them a troll and a witch hunter fanboy), they unexpectedly come across a link to their own pasts and the secret their parents took with them when they disappeared.k