The American President's upcoming visit to Canada has the ICS Squad on full alert. Working with DHS Agent Liz Carver and the Secret Service Advance Team, ICS sifts through hundreds of threats and uncovers an assassination plot by a Lebanese terrorist, working for the Iranian Revolutionary Guard. But as Slade digs deeper, he discovers the trail they've been following is an elaborate electronic smokescreen created by a sophisticated hacker. To make matters worse, an internal security leak means the real assassin is always one step ahead of the Squad.

The guys build a "wheelchair chopper" for the Christopher and Dana Reeve Foundation. Meanwhile, Jr. makes his first visit to the shop in more than four months.

The Jay Leno Show welcomes actor Denzel Washington, sportscaster Cris Collinsworth, and Mikey Day with JMZ.

When Mike invites girls back to the house, the situation gets out of control, and Snooki gets into her second fight of the summer. Meanwhile, Ronnie gets into a brawl of his own, leaving his tumultuous relationship with Sammi on the rocks.

Guest: Actress Maggie Gyllenhaal talks about her new movie "Crazy Heart".

Tonight Stephen welcomes political scientists and co-author of Connected: The Surprising Power of Our Social Networks and How They Shape Our Lives, James Fowler.

Bradley Cooper, Rachel Maddow, and Nick Jonas are the scheduled guests. Plus, a Top Ten list from Homer Simpson!

The Tonight Show with Conan O'Brien welcomes actor Jackie Chan, actress Emily Blunt and musical guest Jencarlos.

The panellists on this episode are Ronni Ancona, Sandi Toksvig and Jack Dee.

Leo thinks might have worked out why he has no memory of Connelly's post-mortem but before he can prove he is innocent he is hit in front of his house and ends up in a coma. Coroner David Levin is discovered dead and it is revealed that he has also been poisoned by cyanide. With Rebecca looks like she could have committed the murders Harry refuses to believe she is responsible and he ends up putting his career on the line. Harry is able to find evidence that Levin committed suicide and when he goes to talk to Rebecca all he finds is nobody at her house.

Claudia Winkleman, Shappi Khorsandi, Jamelia, Charlie Clements