The company tells the tale in the video's description on YouTube:
"Eight months ago, James was attacked by a shark while at a local beach, which left a scar on his head. That was James' story. In reality, he underwent surgery for a brain tumor, and was looking at six months of chemotherapy. It was at that time that he planned to marry his girlfriend Van merely two weeks after chemo, and they came to VanWeddings to tell their unique wedding story.
Needless to say, we went all out for this most inspiring couple, including the aerial drone helicopter, and they chose the most lovely Gulf Islands between Vancouver and Victoria to tie the knot, the superb Bodega Ridge Resort on Galiano Island to be exact. The wedding was more than just a ceremony, it was a celebration of life, and the triumph of love over cancer, and sharks."
To the happy couple.