Derek Shepherd, also known as McDreamy, beloved doctor, husband, and father. When the heartthrob was killed off in season 11 episode 21, every "Grey's Anatomy" fan reacted with shock and anger. This type of reaction may have prevented you from realizing that the death of Derek Shepherd was completely implausible. I'm going to explain exactly why it can't be possible that Dr. Derek Shepherd died in "How to Save a Life". Let me walk you through the notorious episode.

The episode begins with Derek on his way to the airport. Due to traffic caused by an accident on the highway, he is forced to take a little-known short cut that does not have any cell phone reception.

2 minutes, 52 seconds

Derek is talking to his sister Amelia on the phone and loses the call due to poor cell phone reception, "I'm gonna lose you here in a second. The cell phone reception is bad."

6 minutes, 4 seconds

When Derek and Sarah realize her cell phone is out of reach and they can't call for help, Sarah explains, "it wouldn't matter anyways. I drive this road every week, there's no cell reception."

7 minutes, 25 seconds

When Derek checks on the other car, Alana realizes there's no cell reception and franticly yells, "I need to call my mom. Why isn't my phone working?"

12 minutes, 2 seconds

Alana paces back and forth while raising her cell phone in the air, searching for (and failing to find) reception, as Charlie repeatedly asks "What happened?"

17 minutes, 24 seconds

Because they didn't have reception to call for help, it was Charlie's car fire that signals help. When sirens are heard in the distance, Derek and Winnie state, "they got our smoke signal."

18 minutes, 53 seconds

When Derek pulls out to leave, his phone starts ringing and vibrating (EVEN THOUGH THERE IS NO CELL PHONE RECEPTION). Because he is in the middle of the road and reaching down to retrieve his ringing cell phone from the floor where it fell, Derek is hit and killed by a truck.

Ultimately, because there was clearly no cell phone reception, it's impossible that Derek's phone was able to receive a call. Therefore, Derek Shepherd cannot be dead. Good one Shonda, you got us. Now bring him back.