Will reluctantly has to explain the differences between boys and girls to a surprised Eve, and discovers that his robot friend has a hidden talent for goalkeeping. Will begs her to play for his failing team, but Eve wants to win, whatever the cost. Lily uncovers a mysterious Wi-Fi signal, but Eve insists it's not coming from her. Meanwhile, the cleaning spiderbot Nick has brought home from his work at Calimov has become sentient and goes out of control. Lily finds a connection between Eve and an attempt to hack into the systems of a local nuclear power station controlled by Calimov.