Molly and Carl finally get their dream jobs as vets but soon learn it's not all cuddles with cute animals — big and important decisions have to be made. Like whether to de-sex a pet or when it might be best to euthanise a much-loved furry member of the family. Brains Trust: Guardian Angels Primary School in Queensland — Cienna, Daniel, Ellena, Eva, Kaizin and Laetitia Guest: Dr Ari Ende, VETaround, Sydney