Pharaoh the king Egypt thought that the growth of Israelites was a threat to his power so he tries to destroy Israel by putting them though slavery and labor and makes sure all the young boys drown in the river.
During all this madness Jochebed a mother put her youngest child Hebrew Moshe in a basket to make sure her son would live and hopefully find a new family.
What have I done.
A day later Pharaoh's daughter Thermuthis found the Hebrew baby Moshe and adopter him and named him Moses.
HUH WHAT?
MOSES, TELL PHARAOH TO LET MY PEOPLE GO. HE WILL RESIST SO I WILL BRING PLAGUES AND HARDEN HIS HEART
Moses continue to grow and eventually became a full adult.
After becoming an adult Moses, he killed an Egyptian who was beating a Hebrew. Moses then escaped to avoid Pharaoh's death penalty and went to Midian.
After leaving Egypt Moses encounters a burning bush who is actually God. God tells Moses to go to Pharaoh and tell him to let the Israelites go.