When the Boat Comes In S03E09 - Look Up and See the Sky

Colfax visits Jack to haggle over the sale of Wellesley Street. Jack knows that Colfax has already invested in expensive new plant and holds out for the full amount and acceptance of union labour. Colfax eventually agrees when Jack threatens to sell to Manners, who would then be able to bankrupt Colfax and take over his factory. Bella tells Jack about the possibility of an operation for Bill, and Jack reveals this to Tom.