Una, when a contagion ravages the ship and incapacitates the crew, must confront a secret she’s been hiding — Rebecca Romijn, playing Una Chin-Riley, delivers an exceptional performance. Romijn brings to our screens a fully rounded characterisation that goes far beyond anything we could have expected. Una, even though she is an Illyrian, wanted to join Starfleet ever since she first saw the stars. Federation regulations prohibit people like…