Importance of Being a Bachelor - a Format Export

Despite the example of their own parents' enduring marriage, the three Bachelor brothers show no signs of settling down. Adam has a string of glamorous girlfriends, but they aren't suitable wife material. Luke has just proposed to Cassie but his refusal to consider having children looks like an insurmountable barrier. And baby of the family Russell is in love with the one woman he can't have. Then their father announces he has been thrown out of the family home and this proves a dramatic catalyst for lots of soul-searching. Are all three Bachelor brothers totally hopeless cases or just late starters?