Complex sentence: The franchise revolves around a boy named Ben Tennyson who acquires a watch-like alien device, called the "Omnimatrix," or more commonly, the "Omnitrix," which allows the wearer to transform into multiple different alien creatures.
Split into simpler sentences: The franchise revolves around a boy named Ben Tennyson who acquires a watch-like alien device, called the "Omnimatrix," or more commonly, the "Omnitrix". The Omnitrix allows the wearer to transform into multiple different alien creatures.