After the death of his son, the Pharaoh finally let the Israelites go. However, when Moses and the Israelites were nearly at their destination, the Pharaoh's army were coming after them.
When Moses and his people reached the Red Sea, God told him to hit his staff on the floor. Moses did that, and the Sea parted in two. The Isrelites safely passed, but the Egyptians were drowned as the sea became one again.
After Moses and the Israelites safely crossed the Red Sea, they were starving as they had no food to eat. But after a couple of days, God listened to their prayers, and He miraculoulsy provided them food.