Kiera and Carlos investigate the murder of a Professor Martin Ames, a scientist that was working to develop a source of clean energy, which will be fruitful to all humanity, who was found slain while experimenting with a high energy device. It's apparent that the weapon used to kill him is quite advanced and Kiera believes that it could be the work of Liber8. His graduate student, Shane Mathers offers to help them but finds that all of the professor's files were stolen. They suspect Dr. Melissa Dobeck, a former partner who split with Ames after a disagreement over ownership of the intellectual property, but she denies having anything to do with it. They hit a brick wall when the military takes over their case on national security grounds. Meanwhile Liber8's leader, Kagame, suddenly arrives in the present. He's taken to hospital but quickly sets out to find others in his group. No one knows why he didn't arrive at the same time as the others and for that matter if anyone else from the future may also be here. Kellog has made a fortune in the stock market - a little advance knowledge can go a long way - and is enjoying his new-found wealth. He extends a helping hand to Maddie, paying off the mortgage on her house. She thinks he may be coming on to her but he assures her that's not the case - in fact, Maddie is his grandmother, though he doesn't tell her that. The list of possible suspects in Ames's demise leads Kiera to a precarious place in her personal journey, where she must decide between doing the right thing to do and the preservation of the future she so desperately wants to go home to.