 The series ' title sequence , storyboarded by Gerry Anderson , is made up of two parts . It opens with a countdown of " 5 , 4 , 3 , 2 , 1 : Thunderbirds Are Go ! " , provided by Dyneley in character as Jeff Tracy . In a departure from the style of Stingray , the Thunderbirds title sequence varies with each episode : the first part consists of an action montage that serves as a preview of the plot . Simon Archer and Marcus Hearn , biographers of Gerry Anderson , compare this device favourably to a film trailer . 
 The series <a href='null_genetive' title='1'><mark>'</mark></a>title sequence , storyboarded by Gerry Anderson , is made up of two parts . It <a href='uninflect' title='2'><mark>opens</mark></a> with a countdown of " 5 , 4 , 3 , 2 , 1 : Thunderbirds Are Go ! " , provided by Dyneley in character as Jeff Tracy . In a departure from the style of Stingray , the Thunderbirds title sequence <a href='uninflect' title='3'><mark>varies</mark></a> with each episode : the first part <a href='uninflect' title='4'><mark>consists</mark></a> of an action montage <a href='null_relcl' title='5'><mark>that</mark></a><a href='uninflect' title='6'><mark>serves</mark></a> as a preview of the plot . Simon Archer and Marcus Hearn , biographers of Gerry Anderson , compare this device favourably to a film trailer . 
Da series  title sequence , storyboarded by Gerry Anderson , is made up of two parts . It open with a countdown of " 5 , 4 , 3 , 2 , 1 : Thunderbirds Are Go ! " , provided by Dyneley in character as Jeff Tracy . In a departure from tdastyle of Stingray , thdahunderbirds title sequence vary wid each episode : thedarst part consist of an action montage serve as a preview of the plot . Simon Archer and Marcus Hearn , biographers of Gerry Anderson , compare this device favourably to a film trailer .