From the News page :
Stay On This Channel - Terrahawks: Volume 2 is available to pre-order today!
Gerry Anderson and Christopher Burr's beloved Supermacromation series returned earlier this year in the smash hit Terrahawks: Volume 1 from Big Finish and Anderson Entertainment, produced by the brilliant Jamie Anderson.
And in April 2016, Dr Tiger Ninestein and the Terrahawks will return, for eight more adventures battling against the hideous Androids. But it's not just Queen Zelda who our heroes have to contend with this time - as an all new Android has made his way to Mars. With a new army of monsters and a terrifying scheme, can our heroes possibly defend themselves against the renewed Martian threat? Stay on this Channel for Terrahawks: Volume 2, available to pre-order today.
You can still order the first release, Terrahawks: Volume 1, and even check out a free episode Terrahawks: Deadly Departed.