afield, abroad (adverb)
far away from home or one's usual surroundings
"looking afield for new lands to conquer"- R.A.Hall
in or into a field (especially a field of battle)
"the armies were afield, challenging the enemy's advance"; "unlawful to carry hunting rifles afield until the season opens"
off the subject; beyond the point at issue
"such digressions can lead us too far afield"
Digressing from the topic at hand.
On the field.