Robert Harrop

Leonard and Amy take a road trip.

Sheldon records the final instalment of "Fun with Flags".

At Hal's company picnic, Malcolm's date hates him and Hal avoids his new boss.

As the picnic continues, Hal can't bring himself to admit his real identity to his boss, Malcolm further humiliates himself, and Reese bonds with his scavenger hunt partner. Meanwhile, Francis starts to regret his bet against the loggers' hockey team.

The team must find the pattern in tragic time-loop anomalies. As the investigation unfolds, an electrical engineer and his wife -- a professor of theoretical physics -- enter the picture.

Lester has an unexpected encounter, Malvo changes course, and a new investigation leads Molly down a familiar path.