Black labrador Bilko is referred to the hospital, as he’s had an extreme allergic reaction. Despite treatment by his vet, he appears to be getting worse. Initially stable overnight, he takes a turn for the worse, and his heart rate means staff must monitor him closely. Attempts to anaesthetise Bilko for a scan cause further concern, and the team call in cardiologist Brian to treat him urgently.

In the consulting room, a Belgian Malinois named Hope arrives with her owners after a huge mystery lump has appeared on her throat. Surgeon Anna investigates.

In the neurology department, they’re also looking for answers. Roxy the dachshund is shaking so badly that she is unable to walk. The team come together for solutions. Show less