This week on Context: Shocking revelations in Ottawa as the Prime Minister is implicated in political interference on the criminal prosecution of engineering giant SNC-Lavalin.

Shaking the confidence of Prime Minister Justin Trudeau further - the president of the Treasury Board, Minister Jane Philpott, resigns in a sudden and explosive announcement.

Andrew Scheer, leader of the opposition, says Minister Jane Philpott's resignation is confirmation that Prime Minister Justin Trudeau must step down.

Prime Minister Justin Trudeau's long time friend, and closest advisor Gerald Butts, who resigned last week, spoke before the Justice Committee refuting former Attorney General Jody Wilson-Raybould's recollection of events in the SNC-Lavalin affair.

Plus: the plight of migrant workers. They tend to our fields, put fresh fruit and veggies on our tables. They're taxed as they work, pay rent and food while they're in Canada, but they have few rights. How a case of "modern day slavery" in Barrie, Ontario shines a light on corruption at all levels.

This week - a government in crisis and the trickle down effect of bribery and corruption, and a look at Canadian values of honesty, rule of law, and why blowing the whistle on corruption matters to our national ethic.