If you want to hear the story of Abraham and Issac from the understanding of a Mormon, I'll tell you what I've learned from my seminary classes. (Seminary in Mormonism is similar to the Catholic seminary; Seminary is taught as a school period for 9-12 graders of the Mormon faith).
God loves to teach us with symbols. This is evident throughout the Bible and Book of Mormon (Book of Mormon is another testament of Jesus Christ, says so on cover page; recognized only my Mormon faith, was translated my church founder/restorer Joseph Smith). God was never going to allow Abraham to kill Issac. It wasn't part of his plan, because without Issac, there would have been no Jacob and Esau (the story of Esau's birthright is also a story symbol of Jesus and Lucifer), and without Jacob (who, like his grandfather was renamed; Jacob -> Israel), there would have been no Israel (man or nation) consequently.
Getting to the point, this story is symbolic of Christ's crucifixion. Abraham represents God, who was willing to sacrifice his son for us to be able to receive resurrected bodies. (There was many more comparisons of Abraham and God, but unfortunately I do not have the notes I took). Issac represents Christ, in that Issac carried the wood for the alter that he would be sacrificed on, just like Christ bared his cross. There is reason to believe Issac knew full well he was being sacrificed, because he didn't resist Abraham binding him. Jesus also pleaded with God in the Garden: "Saying, Father, if thou be willing, remove this cup from me: nevertheless not my will, but thine, be done." (Luke 22:42). Jesus asked that the cup (suffering) be lifted from him, but if it was God's will, let God's will, and not Jesus', be done. Issac didn't question his father once after he asked about the lamb for the sacrifice, which leads into a scripture: "And Abraham said, My son, God will provide himself a lamb for a burnt offering: so they went both of them together." (Genesis, chapter twenty-two, verse eight). After all is said and done and the Lord sends a ram to be sacrificed in Issac's place, and the angel manifests to him, another symbol pops up in verse 16 of the same chapter: "And said, By myself have I sworn, saith the Lord, for because thou hast done this thing, and hast not withheld thy son, thine only son:". The symbolism there is that like God, Abraham was willing to give up his only begotten son Issac, like God was willing to give up his only begotten son Jesus. Abraham received blessings from following God's commandment, like having his seed more numerous than the grains of sand on the earth, and that his seed would occupy his enemy's lands. If you know a little bible background, Abraham and Sarah were very old and had trouble having a child, and Abraham prayed to God for a son. Issac was beloved my Abraham and Sarah. I believe Abraham was around 100 when he and Sarah had Issac, I'm not sure on Sarah's age. (I don't think it's mentioned)
So there you have it. That story told from a Mormon's understanding. Any questions or contradictions I would be happy to answer to.