▁each ▁episode , ▁Marcus ▁Lem on is ▁typically ▁offers ▁a ▁capital ▁invest ment ▁and ▁his ▁expert ise ▁to ▁struggling ▁small ▁business es ▁in ▁exchange ▁for ▁an ▁ownership ▁st ake ▁in ▁the ▁company , ▁but ▁a ▁series ▁of ▁" In side ▁Look " ▁episodes ▁have ▁comment ary ▁by ▁Lem on is ▁and ▁executive ▁producer ▁Am ber ▁M azz ola ▁as ▁they ▁watch ▁past ▁episodes . ▁Some ▁episodes ▁simply ▁show ▁a ▁business , ▁city , ▁or ▁industry ▁without ▁any ▁invest ment ▁by ▁Lem on is . ▁The ▁Part ner ▁is ▁a ▁spin - off ▁series ▁that ▁a ired ▁in ▁ 2 0 1 7 , ▁also ▁featuring ▁Lem on is . ▁ ▁Season ▁ 1 ▁premier ed ▁on ▁July ▁ 3 0 , ▁ 2 0 1 3 ; ▁season ▁ 2 ▁premier ed ▁on ▁February ▁ 2 5 , ▁ 2 0 1 4 . ▁The ▁second ▁part ▁of ▁the ▁second ▁season ▁returned ▁October ▁ 2 0 1 4 . ▁After ▁a ▁successful ▁second ▁season , ▁with ▁ratings ▁going ▁up ▁ 1 1 5 % ▁from ▁the ▁first ▁season , ▁the ▁third ▁season ▁premier ed ▁on ▁May ▁ 1 2 , ▁ 2 0 1 5 . ▁The ▁Prof it ▁returned ▁for ▁a ▁fourth ▁season ▁on ▁August ▁ 2 3 , ▁ 2 0 1 6 . ▁A ▁fifth ▁season ▁premier ed ▁on ▁November ▁ 2 1 , ▁ 2 0 1 7 ▁and ▁started ▁with ▁a ▁" rec ap " ▁episode ▁that ▁looked ▁back ▁at ▁different ▁companies ▁Lem on is ▁had ▁inv ested