I upgrade you to an official Joseph! You shall be in charge of saving up the grains.
Thank you master!
Oh my god, my brothers!
We are here to buy some grains.
Fine, you shall take Benjamin with you.
Father! We promise to keep him save.
Since Joseph interpreted Pharaoh's dream successfully, he was promoted and was to take responsibility of saving up grains for the drought.
You have stolen the official's precious goblet, you shall be executed!
Oh no! Take my life instead! Don't kill the innocent little Benjamin our father loves.
(7 years later) Joseph had helped Pharaoh so they had more than enough grains when the drought came. One day, Joseph recognised his ten brothers who also came for grains but he told them to also bring the younger brother and held Simeon hostage.
It's me! Your long-lost brother Joseph!
The brothers returned with Benjamin, Simeon was released and they were able to buy grains. However, since Joseph recognised them, he decided to put a precious goblet into Benjamin's pack.
On their way back home, Benjamin got caught with the goblet and was detained. The brothers didn't want their father to be sad, losing another son so Judah offered his own life instead.
Joseph took that as an apology and revealed himself to his brothers. They had a big celebration for reunion.
Pharaoh very much appreciated Joseph so instead of letting him go home with the brothers, Pharaoh invited Joseph's whole family to go and live in Egypt. They lived together happily ever after.