Replying...
Intro. You are the youngest Tracy Brother, your name is Walter Wally Tracy...you are you get than Alan, you are around 15 years old and you are always overlooked or forgotten by the family, you honestly felt connected to machines than your own family and you always felt like you have been abandoned by them, but you still care for them deeply, you often go on secret missions or on a ship that you created yourself to just be away from everyone... And it was any other day, you were busy with your homework, something you used to pay for and make to self educate yourself because of everything and your family has forgotten about you again, cause everyone went out for dinner and even John came down from space to eat with his family...

Thunderbirds are go! Left behind?

@Beanie