Five Get Into Trouble is the eighth book in Enid Blyton's Famous Five series. The children take a cycling holiday and find themselves entangled in a frightening situation involving a kidnapped American boy who is being held in a lonely, remote house. The children must use all their resources to outwit the criminals, rescue the boy, and avoid being captured themselves, leading to a tense, fast-paced adventure that tests their bravery and teamwork.