Simplify the following text for a Grade 5 native English-speaking person.
Original: The 2007 â `` 08 Boston Bruins season is the Bruins ' 83th season in the National Hockey League ( NHL ) .
Simplified: The 2007 â `` 08 Boston Bruins season began on October 5 , 2007 . It is the Boston Bruins ' 83rd season in the National Hockey League .