I'll be heading off on the mission in a few months.

He pushed her, and headed off on a determined course for somewhere.

"I feel like heading off on foot and searching for her."

The two youths took their weapons and headed off on foot.

With your goal all set, you head off on a search of the island to speak to people and gather information.

This enables him to head off on an adventure of his own.

Well, you might want to consider leaving them behind if you're going to be heading off on your gap travel.

Probably they were only heading off on a day trip.

The player heads off on a journey to get all three items.

We head off on a local coach for the city of Tabriz.