The film starts with Logan walking up in his Camero while some thugs are trying to steal the wheels. He goes out to confront them, ends up getting shot a few times and goes into full blown Logan mode. A few legs and arms are left detached from their bodies shall we say. His healing abilities are still viable at this point, we see him ejecting bullets from his body into the sink but he is a complete shadow of him former self.
He travels back to Mexico after getting medication for Charles. They need to keep him in a sedated state due to his powers deteriorating. Caliban notices Logan is suffering adamantium poison and also finds an adamantium bullet Logan was keeping hidden. Logan goes into see Charles who is being kept in that steel dome we seen him in, reason being Charles has seizures which render anyone within range paralysed. Charles confesses to Logan about a new mutant he has been in contact with but Logan dismisses the claim. A few swear words are exchanged. It's very much a stubborn relationship. All three of them are basically just existing together with no purpose.
Donald Pierce jumps into Logans camero when he's out working and asks if he's been in contact with a woman hiding a child(X-23) which Logan tells him to F**K off I believe. Anyways, Logan gets a text on his phone where people have requested a lift and when he turns up it ends up being X-23 and the woman who helped her escape. She offers him £50,000 to drive her to North Dakota which Logan agrees too as he's saving up for a boat.
When Donald confronts Logan where's living asking for the girl, he geniunely has no idea Laura is there. Logan and Donald are talking about Charles, we find out he is wanted by the Government because his mind has been listed as a Weapon of Mass Destruction, hinting to the fact Charles killed alot of people(probably Mutants). It's not until Laura throws a pipe off Donalds head and knocks him out Logan realises she's there. He tells Caliban to take Donald and dump his body, however Donald wakes up and they end up kidnapping Caliban but give Logan the impression they killed him. All hell breaks loose with Laura and Logan killing the majority of people there. Laura dispatches the majority of them while Logan protects Charles...And yes the rumours are true, Laura has claws out her feet and she uses them perfectly. Charles tells Logan she's his daughter which Logan finds out after reading her files she has hidden in her backpack. It literally says DNA Source Code - James Howlett
Charles, Logan and Professor X basically go on the run after that. As they're escaping another attack they get invited to start the night at a families house where they sit and have dinner. Charles tells Logan it's not too late to experience a life with Laura. Logan goes out to help the guy fix his water which is where we encounter X-24, who is a complete clone of Logan including the adamantium skeleton. He kills the family and also kills Professor X by stabbing him in the chest and kidnaps Laura. Logan and X-24 have a little showdown but Logan's abilities are rapidly declining and soon becomes overthrown by X24. X-24 ends up getting rammed into a spike by the owner of the house and then gets half his skull blown off by a Shotgun.
Logan and Laura arrive at North Dakota where they meet all the other test subjects. They inject Logan with a green liquid which is basically a steroid for Mutant Powers, which helps Logan heal some of the wounds he's suffered from X-24. The young Mutants plan their escape the next morning. Logan tells Laura he is not his father and that he basically does not care for her like that. When Logan wakes up all the Mutants are gone and he seems happy, until he release the Reavers are following them. He tries to catch upto them but he's too injured so he injects himself with the rest of the green liquid even though the young mutant told him not too which gives him an energy boost. He's able to dispatch the majority of the Reavers but the steroid soon wears off. He kills Zander Rice and then has a final showdown with X-2 with the help from a few young Mutants, again he's no match for X-24 and ends up getting dragged over a tree stump which penetrates a massive part of Logan's abdominal. It gives Laura enough time to shoot X24 in the head with the adamantium bullet which quite literally blows half of X-24 heads off.
Laura goes over, holds Logan's hand. They both exchange tears and she refers to him as Dad. He smiles and tells her "So this is what it feels like" reference to what Charles said in the house about him experiencing a normal life. He accepts her as his daughter and tells her to not become what they made her into, he sadly dies due to his wounds. The young Mutants bury him, Laura says some words and we see a young mutant with a Wolverine figure dressed in the Yellow Costume. As the young Mutants walk away, Laura walks back to his grave and turns the cross into an X
Any questions, please fire away and I'll try answer them