Another timeline issue comes into play when Jack is healed from his gunshot wound in Season 3, which doesn't seem medically possible in three short weeks. The confusion is compounded by the fact that Lilly's baby, who was born in Season 1, is still very young. It is easy to see why fans of the show have become frustrated with the timeline; as u/the_littlehobbit writes, "It's insanely annoying how off the timeline is on this show.”