 In episode thirteen 'Red Reef', Kate comes face-to-face with ET's murderers and finds herself in a fight for her life with one of them after the pumping station they are in bursts into fire, leaving only one to survive – in the arms of her C.O.After Mike leaves Hammersley at the start of the fourth series, Kate is keen to pursue a relationship with Mike.The pair sleep together and Kate is looking forward to continuing the relationship but her plans are cut short when he returns as Hammersley's CO at the end of the second episode 'Crocodile Tears'.