In the final, Farah (GBR) started faster than normal, after the pack congealed landing in second place behind Paul Chelimo (USA) who ran around the crowd to get to the front.
Tiernan moved the pace up to 64 seconds but the rest of the field didn't chase, letting him break away to a 10-metre lead.
The next lap was under 63 seconds, with Yomif Kejelcha (ETH) coming to the front of the pack but leaving Farah to lead the group.
Into the last two laps, a time when Farah does not like to get passed, he stayed ahead of Kejelcha, the overall quicken pace overtaking Tiernan with 600 metres to go.
Shortly after passing Tiernan, Butchart rushed forward to get on Farah's shoulder to form a British wall similar to the ending stages of the Olympics.
Through the turn, Kejelcha fought his way around the outside of the wall and onto the homestretch to take the lead going into the bell with the rest of the Ethiopian team, Edris and Barega lining up on the outside, next to Farah, Mohammed Ahmed (CAN), and Chelimo on the inside.