There are 5 character paths in this mode, with 4 matches in each one. There are 3 objectives per match, for a total of 60 objectives. The story modes for Neville, Rusev, Sami Zayn and Bo Dallas are all straightforward, however the Corey Graves mode tends to give people difficulty. This is due to difficult objectives, tough opponents, a weak player character and an inability to edit his pretty bad moveset as he has not yet "unlocked".
A few tips for the hardest match, vs Bray Wyatt. Graves does not have resiliency and I find Wyatt's finish difficult to counter, so I lost this match a lot. Graves' moveset tends to attack the legs a lot, and you must defeat the very tough Wyatt via non-finisher submission. It may seem logical to go for a leg submission, but try focusing on his head for the duration of the match. Once you have it in the red(objective 1), stand in front of Wyatt and hold down the A button. You will do some sort of headlock, although the first time he will easily escape. Do this again and you should submit him, if not, attack the head two or three more times and headlock for the win. Approaching him from behind will give you modified sleeper which does the same thing.