Ben and Kate Season 1

When Ben comes to crash on Kate's couch for a few days, he finds a sad state of affairs. For the first time in their lives, Kate needs Ben's help, and he's determined to bring some much-needed chaos into her overly stable world.

He starts by looking after Maddie so Kate can get back to making mistakes, since the one real "mistake" she made turned out to be the best thing that ever happened.