Tom Swift, Jr, & his friend, Bud Barclay, enter an international space race hoping to orbit the earth in two hours.
A vanished pilot
The fuel kicker
Following a clue
The first test
Sabotage
The rocket launching
A crack-up
Stowaways
An inventive escape
A robot at work
A coded threat
Dangerous acid
A startling ascent
Emergency orders
An attempted theft
Operation shuttle
An important capture
Zero-hour interruption!
Sealed instruments
Ghost winds
An unexpected mishap
Messages from space
Ominous signs
An attack
A record victory