Conversation so far:
who plays older simba in the lion king
Donald Glover plays Simba in the 2019 film The Lion King.
what other voices are in the film The Lion King besides donald glover
The Lion King stars the voices of Seth Rogen, Chiwetel Ejiofor, Alfre Woodard, Billy Eichner, John Kani, John Oliver, Florence Kasumba, and others.

Question: can you give me a summary of the plot
Self-contained rewrite: can you give me a summary of the plot of the lion king