Akhenaten
In 1363 BC there was a famous Pharaoh named Akhenaten, who built a new capital at Amarna and seems to have worshipped a new sun god, and developed new art styles.
Nefertiti
His wife was Nefertiti. Akhenaten had no sons, and his successor was his son-in-law Tutankhamon. However, by 1333 BC the Pharaohs went back to the old religion.
Tutankhamon
In 1303 BC a new northern dynasty or family of Pharaohs took over, the 19th Egyptian dynasty. Their first king, Rameses, moved the capital back to Memphis in the north. Priests became very powerful. Fighting with the Hittites in West Asia continued, but also a lot of trade. This is the time when the Bible says the Jews were slaves in Egypt.
The 20th dynasty Pharaohs, around 1200 BC, continued the same policies, and were all called Rameses. There were many attacks on Egypt, first from Libya to the west and then from West Asia, by a group that the Egyptians called the Sea Peoples. The Hittites were destroyed, though around 1100 BC the Egyptians fought off the Sea Peoples in a great naval battle. But the trouble in West Asia seems to have caused a general economic depression in the whole Eastern Mediterranean and West Asia, and soon afterwards the New Kingdom collapsed.