Thunderbirds 3 and 4 are need on Europa, one of Jupiter's moon, when a pair of documentarians fall into an ice ocean. This leads Alan to make first contact with an alien lifeform.
Casts:
Rasmus Hardiker, Chris Jarman, David Menkin, David Graham, Sandra Dickinson, Jenna Coleman, Adjoa Andoh, Thomas Brodie-Sangster, Angel Coulby, Kayvan Novak, Rosamund Pike, Teresa Gallagher