He and Doctor Phlox then tend to Porthos, and Archer spends the night in Sickbay to be with his pet. Throughout the night, as Porthos' immune system weakens, Archer experiences Phlox's side of life in Sickbay. During the night, as he dreams of Porthos' funeral, Archer also deals with unresolved and suppressed sexual tension with T'Pol. He also relates to Phlox how he met Porthos, and how he was the last in a litter of four male puppies, the 'Four Musketeers'. Through it all, Archer struggles to reach an emotional understanding with Phlox and T'Pol, as the two alien senior-crew members have little grasp of the human-pet relationship, and Phlox keeps offering Archer unsolicited advice about dealing with his apparent feelings for T'Pol.