Questionable Chord is F,B,C. In a 4/4 progression play that 2 beats, then play F (F,A,C) 2 beats. Slowly and with feeling

From the song Come See (performed by Michael W Smith on the album stand). Key of C. Simple sweet I, V, VI, iv progression.
In the middle the bridge/chorus/climactic change with a questionable chord. No chord finder on the net (searched for couple hours) could name it. Must be a mode thing.
If you like to hear it...
My lovely chord comes in just after 2 min 40 seconds.
I look forward to your help.
Thanks,
BB
PS hopefully I wrote out my roman chord names correctly. I am a student, please critic me.... thanks