Rattrap uncovers a catalyst program that accelerates the growth of Cybertron's newfound plant life. Meanwhile, Blackarachnia discovers the truth about Thrust's Spark.

毒蜘蛛一心以为银箭的火种被困在冲锋体内，她试图用有机溶液作为催化剂唤醒银箭。但令她失望的是，冲锋体内的火种竟然是过去的原始兽——黄蜂的，而银箭的火种则被困在利剑飞船的体内。毒蜘蛛暗下决心，一定要救出银箭。坦克已经做好了大决战的准备。