Complex sentence: To ensure the Globetrotters' defeat, the villains rig the contest to ensure that their opponents lose; however, before the second half of the contest, the team always finds a way to even the odds, become all but invincible, and win the game.
Split into simpler sentences: To ensure the Globetrotters' defeat, the villains rig the contest to ensure that their opponents lose. However before the second half of the contest, the team always finds a way to even the odds, become all but invincible, and win the game.