Okay so I'm not sure on the chords yet as he seems to be shifting the root note 
often and I'm not entirely sure what the tuning is on this song.

Could be standard in which case the four chords are Am/C F G and C 
or could be drop C in which case the chords are C/A F G and C

Either way the song follows a simple pattern that is consistent throughout but 
slightly different to all the variations up here. for this Tab I'll put the chords 
up following the Root note being played based on a Drop C tuning but it's really 
just a guide and I would call the chords 1 4 5 and 6 really.

Verse
C/A
Fear has taken me 
        FTo (133211@1)a place I shouldn't be
 C/A
Pretending not to care 
             FSeeing (133211@1)is believing, now it's here

Pre Chorus
 G (320003@1)                    C/A             FRead (133211@1)my face there's a past I can't escape 
 G (320003@1)                 
Yeah, I keep running 
 C/A             FI (133211@1)keep running away 
FAway (133211@1)
Chorus
       CSuperhero (x32010@1)                 F (133211@1)Save my life tonight
   C (x32010@1)                      FI (133211@1)know You'll be there to fight 
            C/A
I won't let go
G (320003@1)             FBring (133211@1)me in the Light
        C (x32010@1)Superhero
                FSave (133211@1)my life tonight 
  G (320003@1)              CSave (x32010@1)my life tonight

Verse 2
      C/A
The spark is now a flame 
                     FThe (133211@1)Fire that you breathed inside of me 
 C/A
Now there is no doubt 
                      FThere (133211@1)will be some knocking down 
 
And dragging out

Pre Chorus  
     GYou (320003@1)built me up 
     C/A           FAnd (133211@1)I'm forever changed 
   GIf (320003@1)I should fall 
  C/A                 FI'll (133211@1)just call Your Name

Your Name

Chorus
       CSuperhero (x32010@1)                 F (133211@1)Save my life tonight
   C (x32010@1)                      FI (133211@1)know You'll be there to fight 
             C/A
I won't let go
  G (320003@1)             FBring (133211@1)me in the Light
        C (x32010@1)Superhero
                FSave (133211@1)my life tonight 
  G (320003@1)            C/A
Save my life tonight

Bridge
C/A  G (320003@1)       FWhoa (133211@1)oh a wah ah oh
                   C/A
Save my life tonight
      G (320003@1)         FWhoa (133211@1)oh a wah ah oh
       CSuperhero (x32010@1)       F (133211@1)
Superhero

Chorus
       CSuperhero (x32010@1)
                 FSave (133211@1)my life tonight 
   C (x32010@1)                     FI (133211@1)know You'll be there to fight 
            C/A
I won't let go 
G (320003@1)              FBring (133211@1)me in the Light 
       CSuperhero (x32010@1)
                FSave (133211@1)my life tonight

G(hold)        C(hold)
Save my life tonight
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