Tom Corbett, Space Cadet

The Mystery of Alkar (1x6)

Yayınlanma tarihi: Ağu 11, 1951

The Cadets are menaced by a weird, near-mute visitor from Alkar, the legendary black planet lying beyond the orbit of Neptune. But a much more deadly threat comes from an old and very dangerous enemy, that could lead to an attack against the entire Solar Alliance.