Cal refuses to believe that Matilda is not his daughter, anddecides to contest the outcome of the paternity test bydiscovering his blood group. However, when the results comeback in, he makes a far more shocking discovery that leaveshim shaken and bereft of any sense of identity. Meanwhile,Jacob impresses Connie by keeping his anger under control whiledealing with an uncooperative patient, and an encounter in thestaff room causes the sexual tension between the pair to grow.