Utilizing themes of time-travel, the episode follows Desmond as he physically shifts between the years 1996 and 2004. His one saving grace from this harrowing experience is establishing an anchor – a constant – between the two periods of time. Desmond, of course, chooses Penny. Contacting her in 1996, Desmond convinces Penny not to change her phone number so that he may call her in 2004. When he is finally able to make that call, their emotionally charged reconnection is breathtaking.
“I love you, Penny. I've always loved you.” Stunningly powerful. And honest.