Mission: Attack on Europa
The affair on Langrenus now settled, Bob plans to return home. But an urgent cry for help from an old friend interrupts his homecoming. Bob brings along a new ally, enlisting him in his growing little band of U-net agents. The new guy is James Jenkins, a.k.a Diamond Dog, a young, hot-shot pilot with smuggling connections and as soon as they set foot on Mars trouble blows up in their faces.