Ep 5. The Uninvited

When a scientist working on a top-secret project goes missing, the Tracy brothers must investigate in the Thunderbird vehicles. As they follow a trail of clues, they discover that a group of crooks has taken the scientist hostage in an attempt to steal his invention. Using their advanced technology and specialized skills, the Thunderbirds team must rescue the scientist and stop the criminals before it's too late. But their mission is complicated when Lady Penelope and her faithful butler Parker show up uninvited, determined to help. As the two teams work together, they face dangerous obstacles and unexpected challenges on their mission to save the day. Will they be able to succeed and protect the world from the threat of the stolen technology? Find out in Thunderbirds season 1 episode 5: The Uninvited.