Can Earth's warriors repel the alien menace? FRONTLINE: SEASON FOUR: INVASION OF THE GIANT AMOEBAS adds a new twist to Risk 2210 A.D. in the form of an extraterrestrial threat. Included in the expansion are a set of Amoeba Event Cards, three copies of a new Diplomat card, and Amoeba tokens. At the beginning of their turn, each player must draw from the Amoeba Event deck. The Amoebas advanced technology and strong attack will be the bane of each player. Expands: Risk 2210 A.D.