I urgently need you to revise this short summary. Thank you.

1) Robinson travelled twice two Africa.
On his first voyage to Africa they were caught in a storm but they eventually saw a boat, jumped onto it and saved their lives.
2) On his second voyage he was captured by pirates and he was made a slave by the ship captain and spent two years serving him.
3) He eventually managed to escape and was rescued by a Portuguese ship. He bought a plantation out of the money he made by selling both his boat and his weapons.
4) After two years he realized he needed more slaves to work on his plantations. So he travelled back to Africa.
5) This time he and his fellow mates (??)were caught in a hurricane and forced to leave the ship and spring into a boat.

1. Check all spelling. Add one comma.

2. Add 2 commas; delete the first instance of "and"; delete the second instance of "he was".

3. OK

4. add a comma; combine into one sentence.

5. "fellow mates" is redundant; just say "shipmates"; delete the second instance of "and"; add a comma after "hurricane."