Movie plot (The risen)

After an unknown plague hits a small market town in the south of Wales, five friends, all in the same year group ages 17 to 18 named Emile, Carter, John, Cat and Linda must all discover the cause of the infection as they appear to be immune to its deadly effects. As the group quickly find out, the plague is not the least of their problems as those killed by the deadly infection are seen to rise again, deformed and vicious with a hunger for the flesh of humans who are not infected. 
Some members who live in town, such as John, Carter, Linda and two others, picked up on their travel, Natalie and Marcus ascend from their houses to meet up with Emile and Cat  who come further out of town, in the country side. They meet up at an area in the woods that they used to use as a den back when they where children. They set up their camp here for a short period of time, in order to avoid town as that seems to be where to majority of zombies are based, and also to come to some agreement on a plan for survival.  Fortunately the members of the group living in the country both live on farms and possess weapons such as rifles and shotguns, and even a bow with a set of arrows, with enough ammo to get them into the town.
The members meeting up from the town have to use their instincts, creating weapons from household appliances such as kitchen knives, sports equipment and gardening tools like shovels. 
On the way to the woods, the group moving from the town stealth fully raid people’s deserted  homes for extra food and water, not knowing how long they would go without both, given the circumstances.  However, they lose Natalie and Marcus to a passing horde of infected on the main road leaving town. Narrowly escaping, the remaining three, John, Carter and Linda are forced to take a more unorthodox path out of town, using the sewers which fortunately for the trio have an exit in the woods that they plan to meet up at, the exit pipe flows into the stream which runs through the woods. It’s not till after the deaths of Natalie and Marcus that the group realise just how real this situation is, and how serious they have to take it now.
The group of friends then reunite at the woods very early in the morning before the sun had fully risen, exactly in the place where they planned, and just as they expected they had not ran into any danger in the woods since they get there. They then decide that it’s best to not stay long, a night at the most as they weren’t really too far out of town and couldn’t not attract too much attention to themselves. 
Arriving early in the woods meant that they had a chance to set up camp and a secure perimeter ready for the night. Emile and Cat spare what weapons and ammo they can to the other three. John, Carter and Linda then share their excess food and water with Emile and Cat. 
They stay for the one night at the camp, planning to make a move in the early hours of the morning to make a run through the town and look for survivors. The group take turns to keep watch for infected and the night passes by pretty smoothly. When it’s Emile’s turn to keep watch, everyone else is away in their tents and he hears a rattling sound coming from the sewage pipe, he wakes Carter, questioning him to whether or not he closed the pipes grid or not, but before Carter has a chance to answer, a zombie comes behind Emile and grabs hold of him, Emile being the bigger member of the group flips the zombie over his shoulder and shoots him with his rifle. The other members of the group are awoken by the gun shot and know exactly what needs to be done; they pack their things as quick as possible and device a quick plan. Rather than waiting till the morning the group needed to move into town now, before they attracted any more attention, despite the time being so late at night.  
They flee though the woods and take every back alley and shortcut they can think of to get into town, which results in a fortunate journey with minimal contact with the infected.
To increase their chances of survival for the rest of that night, the group makes haste towards the hold the old castle, with plans locking the gate and fortifying all entrances, but they soon discover that between them and the castle is a horde of infected that where passing through the main street in the town, which they believed to be their only passage to the castle. The horde are alerted by their presence as the group come out of an opening and are faced with their mass of numbers, the infected chase them back through the opening into the street and through the town. In attempt to lose the horde off the tails of the group Carter stays back and as a last stand to fights his way through the infected, blaming his self for bringing the infected to the woods after not locking the sewage grate.
Still traumatised by the loss of their group member, Emile, Cat, John and Linda make their way to the castle on there now clear path though the town, because of Carters sacrifice.
However, once at the castle they discover that there is a strange number of black vans parked at the entrance, destroyed and covered in bullet holes and stained with blood, curious of whats going on, Cat takes a look inside one of the vans and she is attacked by a zombie wearing a uniform bearing a strange logo on its chest. Cat is bitten on the neck, but before the zombie could take another bite John puts an arrow through the zombies eye and kills it. With a recent death mealy hours ago, the group where not keen on loosing another member so they take Cat into the castle, Emile carries her and John and Linda fortify the gates. 
They search the castle grounds in search for a safe area to set up camp and attempt to heal Cat when to their luck, Linda finds that dungeon that was fenced off from the public before the plague hit, was now made accessible and the gate had been open. Taking this opportunity, the group move into the dungeon in search for some sort of reason for the gate being open and maybe finding a clue to the vans parked outside. Before they ventured too far, Linda who studied first aid at her college  before the infection hit, used some of her medical supplies that shit brought with her from home, and bandaged up Cats wound in an attempt to control the bleeding. Cat with her high spirits, eager still to find out what the vans outside where for, pushes the group to move on through the dungeons.
 As they wander through the ancient caverns they soon discover that the dungeon had wires bolted to the walls, thick wires which looked like they could power a whole building. Deeper into the dungeon they go until their tracks are stopped by a large door, ajar with blood all over it. Through the door they find what appears to be a laboratory, abandoned at haste, judging by the coffee cups and papers lying around the place.
In the dim lit room, John finds a button on one of the control panels and out of curiosity decides to push it in a hope that something would happen. Without a second to spare the door they came through had locked behind them and alarms where sounding, the dim lit room was suddenly bursting with flashing red lights.
After being in that room for what seemed like hours, looking for a way out, considering there imminent death, everything shutdown. The lights went out, even the dim lights which had previously lit the room, the door also unlocked which they came through, but so did another door on the far side of the room. It appeared that the laboratory had lost all power, and the doors which locked them in where powered by the electronics in that building, meaning that now all the doors where unlocked. But the group really couldn’t decide whether this was a good thing.
Delving deeper into the now pitch black hallways of the laboratory, the group find a room which seems to be full of giant test tubes. Emile uses his flash light which was almost out of battery, to briefly see their surroundings. As the light scanned the room, Emile and the rest of the group caught a glimpse of what looked like a person, in one of the only unbroken test tubes, mutilated and quite possibly dead, it soon came to their attention that whoever ran this laboratory had been testing on humans, and had certainly been there a long time doing it. 
In haste, the group flee from the lab, picking up medical equipment and other helpful items on their way out. As they reach the entrance room that they came into first, they stopped and devised a plan. Reload all weapons, make every shot count, the plan is to get out of this dungeon, hope that the zombies haven’t got through the castle gate yet, then when everything was packed up, plough straight through the hordes of zombies surrounding the gates and make a run for the river just south of the castle, and follow the river to the next town, to see if the plague hit there too. 

Target audience- 15-25, both male and female
Genre- horror/zombie/survival