Sent to scout a possible new location for a new listening outpost in the Alpha Gruis system near Romulan territory, Endeavour finds a Minshara class world that is teething with rich carbon-based flora and fauna. Further study of the planet shows that there are signs of intelligent life present. The crew makes first contact with a humanoid species that look identical to humans in every single way. As a civilisation, they are almost on par at a technological rate as early twentieth century Earth. From their research, the crew discovers that this new race is a matriarchal society. When a landing party is caught, it is down to the women of the ship to rescue their male crewmates and negotiate a deal with the inhabitants of Angel I.