After Kate Kestrel wins the World Song Contest. Ninestein receives an unexpected challenge from Zelda - who sends the mighty Seam to destroy the Terrahawks and their entire operation.
Why should the Terrahawks team be sent to Mars - the base for Zelda's operations? Tiger is baffled by his assignment. Until Zelda plays her trump card - and the Terrahawks are once again pitted in battle against her cube robots.
By using the Overlander, the supply line to Hawknest, Zelda hopes to gain a victory over her enemies. But why has she delivered a pretty bunch of flowers to the Terrahawks team? Is she seeking a truce?
Zelda has a new ally, Cold Finger Finger. Together they plot to destroy Earth by bombing it with millions of tons of ice. Will her plan succeed? Or can the Terrahawks pump holes in Zelda's murderous scheme?
Using Lord Tempo's powers. Zelda tries to introduce a time warp into Hawknest. But Mary's mind proves too strong and rejects the attempt - so Zelda decides to try the same ruse on SM Zero - with hilarious results.
Richard III and Yung Star in the 21st century? What is going on? Ninestein and his team must find out soon. The scenario spells death for one of the Terrahawks team.
Against Tiger's better judgement, the military send a giant space carrier on a first-strike mission against Zelda's base on Mars. It isn't long before the Terrahawks are needed to straighten out the mess.
When Spacehawks fires at a Zeaf but it escapes, Hawkwings is assigned to pursue the alien. Suddenly the Zeaf becomes miniaturised. Has Hawkwing chased her too far and become trapped in orbit?
Moid (the Master of Infinite Disguise) has perfected an impersonation that is guaranteed to destroy Ninestein and his friends. He travels to Earth as an invisible man to wreak havoc with the Terrahawks.
When a Zeaf crash-lands on Earth, Battletank is sent out to destroy it. But then Zelda announces that she has planted a bomb at Hawknest and the Terrahawks face a race against time to find and defuse it.
