Visions

After waking up one morning with a splitting headache, Dan Howell begins to see things.
Visions.
Visions of his best friend, Phil Lester.
Visions of Phil Lester Dying.
Whilst Dan contemplates the visions and whether they are going to come true, he begins to take chances and make Phil's life better.
But will the visions come true, or were the chances all for nothing?