This is my version of how I felt Dragonball Evolution should have been portrayed, my version will be more faithful to the anime but keep in mind that this story is based on the live action characters not the anime versions.
Dragonball Origins
'Prologue'
Not long ago in a time nearly forgotten, there was the demon king Piccolo who terrorised the earth, he and his demon spawned army brought the human race to its knees, but finally a group of warriors under the mastery of Mutieto, managed to stop all the demons but the might of Piccolo was too strong for the warriors. Mutieto trained for many years and developed the mafuba enchantment which would seal piccolo deep within the earth in a veil of energy, now Piccolo has escaped and is after his revenge……………..
Chapter 1-Life and Death
Mount Pouzu
Goku stands by his Grandpas house and follows instructions form his grandpa Gohan. "Use your ki Goku to sense your surroundings, your eyes will deceive you" Goku replied "its not that easy grandpa" "ok that's enough for today, Happy birthday Goku, Its hard to believe your 15 all ready….." replied Gohan. Goku opens his gift once the wrappings are removed, inside lies a medium sized orange orb which has 4 golden stars floating in the inside.
Gohan predicted that Goku was confused so he answered, "I found that treasure years ago Goku, since then it has brought me luck and apart from you it's my greatest treasure, so keep it safe Goku." Goku replied "Thanks Grandpa, im going to go fishing so I can catch a fish for dinner," Gohan nodded and replied "Ok have fun."
In an Air Ship high above the Clouds
A small statured man enters the main room, and speaks "Lord Piccolo, we have arrived at the Dragonballs location…." Piccolo replied with a grunt and moved form his throne room to the balcony of the air ship. He opened his hand and purple flame like energy ball formed in his hand he released the ball which fell to the small Indian village. A huge explosion and a purple flash was seen as Piccolo fell to the village, he approached the elder and spoke with a deep and chilling voice "where is the Dragonball old man, speak now or become ruins like the rest of your village." The elder fell to his knees and gave the Dragonball to Piccolo, piccolo with a chilling grin spoke again "too slow human scum," Piccolos eyes glowed with a purple tinge and a blast fired from his eyes striking the elder. With a horde of laughter Piccolo flew back into the skies as the elder's lifeless body feel to the floor.
In the airship Piccolo shouts "where is the next Dragonball, Pilaff?" Pilaff replied sharply "Mount Pouzu my lord." Piccolo replied softly as he sat down "good."
Mount Pouzu – Night with a full Moon
Goku looked up at the moon with amazement, and spoke "im getting a warm strong feeling just by looking at the moon," the Dragonball in his pocket began to glow and still staring at the full moon Goku saw a vision of a red Planet being destroyed, whilst watching this he hears the cry KAKAROT!!!! After the vision had stopped Goku fell under a trance like state unable to look away from the moon, soon after his eyes turned from a clear blue to a piercing red. Fangs started to appear in his mouth and loud painful cry's came from Goku. Goku fell to the ground and began to get bigger, soon ripping out of his blue gii and grew monkey like fur on his body. With a huge roar the transformation had been complete.
Else were during deep meditation Gohan looking up with a distressed look on his face he sensed that something was wrong with his grandson he spoke "Goku No." he ran out of the house and headed straight for the forest.
Meanwhile the transformed Goku was rampaging through the forest where grandpa Gohan appeared and fired a low powered ki blast at the beast. As Ozzaru turned round Gohan realised that the beast was Goku, Ozzaru raged towards Gohan, but he managed to evade, getting Angrier Ozzaru launched a boulder embedded in the ground. Gohan tried to reason with the animal "Goku if you are still in there, remember what I have always told you, only with faith can you over come any obstacles, this creature is not you and you must return to the light my boy."
Ozzaru angrier than ever unaffected by Gohans words let out a huge roar and ran at Gohan, predicting that he would evade Ozzaru compensated and leapt and caught Gohan with his fist, Gohan fell to the Floor due to the critical hit, struggling to find words Gohan suddenly died. By witnessing this Ozzaru began to go berserk, with a tear forming from its eye, Ozzaru began to power down back to Goku.
Now unconscious and barely clothed Goku lay beside the lifeless Body of his grandfather unknowing what events had taking place that night.