Wilfred, the bong-smoking dog who thinks he's human, is back for a second series. Ahead this series: a gorgeous cat that steals Wilfred's heart, rehab, a road trip and an unplanned pregnancy. Wilfred will also see his domineering Dad for the first time in years, gain and lose 40kgs and kick-start his music career. Tonight, Adam decides the only way to stop he and Sarah fighting is to ask her to marry him - but what has Wilfred done with the engagement ring?