The second season premieres with its most controversial cast to date, as 18 unforgettable characters from the Bachelor franchise compete for $250,000 ... and a second shot at love.

Kasey and Vienna continue to take aim at Jake. And things get sticky during the "Target on My Back" challenge, as participants hurl paint-soaked balls at each other.

Power shifts as Vienna and Kasey's control of the Pad begins to unravel. In this week's challenge, the contestants will take to the pool in a must-see synchronized swimming event.

Contestants rally to dethrone the power couple. Plus, this week is the "Kissing Challenge." Each guy will kiss the women - and vice versa - then vote for who has the "best lips."

The contestants must compete as couples for the rest of the season - beginning with this week's challenge, "The Nearly-wed Game," which tests how well the pairs know each other.

Season finale: Trista Sutter, Jason Mesnick and Ali Fedotowsky judge as the remaining couples perform a terrifying Cirque du Soleil routine in Las Vegas. Plus, the new Bachelor!